（《素问·遗篇本病论》）
黄帝问曰∶天元九窒，余已知之，愿闻气交，何名失守？岐伯曰∶谓其上下升降，迁正退位，各有经论，上下各有
不前，故名失守也。（此篇承前篇而详言左右间气之升降不前也。《天元玉册》云∶六气常有三气在天，三气在地。每一
气升天作左间气，一气入地作左间气，一气迁正作司天，一气迁正作在泉，一气退位作天右间气，一气退位作地右间气。
气交有合，常得位所在，至当其时，即天地交，乃变而泰，天地不交，乃作病也。）是故气交失易位，气交乃变，变易非
常， 即四时失序，万化不安，变民病也。（当正不正，当迁不迁，则气交有变。天地失其常政，则万民为病。）帝曰∶升
降不前，愿闻其故，气交有变，何以明知？岐伯曰∶昭乎问哉！明乎道矣。气交有变，是谓天地机。（气交之变，吉凶之
征也，故谓天地机。）但欲降而不得降者，地窒刑之。（地星胜之不降，义详下文。）又有五运太过，而先天而至者，即交
不前。（五阳年中运太过，亦能抑升降之气。）但欲升而不得其升，中运抑之，但欲降而不得其降，中运抑之。（甲年土运
太过，能抑水之升降。丙年水运太过，能抑二火之升降。戊年火运太过，能抑金之升降。庚年金运太过，能抑木之升降。
壬年木运太过，能抑土之升降。）于是有升之不前、降之不下者，有降之不下、升而至天者，有升降俱不前，作如此之分
别，即气交之变，变之有异，常各各不同，灾有微甚者也。（有天星窒于上者，有地气窒于下者，有中运抑于中者，凡此
三者之分，则气交之变各各不同，而灾有微甚矣。）帝曰∶愿闻气交遇会胜抑之由，变成民病轻重何如？岐伯曰∶胜相会，
抑伏使然。（六气有遇有会，有胜有抑，则抑伏者为变。）
是故辰戌之岁，木气升之，主逢天柱，胜而不前；（辰戌岁，太阳当迁正司天，而厥阴风木，以上年在泉之右间，当
升为今岁司天之左间，故畏天柱，金星胜之也。）又遇庚戌金运先天，中运胜之，忽然不前，木运升天，金乃抑之。（庚
以阳金有余，其气先天而至，岁运遇之，又能胜木也。庚戌庚辰皆同。）升而不前，即清生风少，肃杀于春，露霜复降，
草木乃萎；民病温疫早发，咽嗌乃干，四肢满，肢节皆痛。（清生风少等候，金胜木衰之化也。金气肃杀于春，阴盛抑扬，
故民病为温疫节痛等证。）久而化郁，即大风摧拉，折陨鸣紊；民病卒中偏痹，手足不仁。（木郁既久，其极必发，故为
大风摧拉等变，而民病为中风等证也。）
是故巳亥之岁，君火升天，主窒天蓬，胜之不前；（巳亥岁，厥阴当迁正司天，而少阴君火，以上年在泉之右间，当
升为新岁司天之左间，故畏天蓬，水星胜之也。）又厥阴未迁正，则少阴未得升天；（巳亥阴年，气多不及，故凡司天厥
阴不得迁正，则左间少阴亦不得其位，而阳年则不然也。后仿此。）水运以至其中者，君火欲升，而中水运抑之。（辛巳
辛亥，皆水运之不及者，而亦能制抑君火，以巳亥阴年，气本不及，则弱能制弱。然或以天蓬窒之，或以水运抑之，有
一于此，皆能胜火不前也。后仿此。）升之不前，即清寒复作，冷生旦暮；民病伏阳，而内生烦热，心神惊悸，寒热间作。
（天蓬水胜，火升不前，故气候清寒，民病则热郁不散。）日久成郁，即暴热乃至，赤风肿翳化疫，温疠暖作，赤气瘴而
化火疫，皆烦而躁渴，渴甚，治之以泄之可止。（火郁之发，故暴热至而民为疫疠温瘴等病。泄去其火热，病可止矣。）
是故子午之岁，太阴升天，主窒天冲，胜之不前；（子午年，少阴当迁正司天，而太阴湿土，以上年在泉之右间，当
升为新岁少阴之左间，故畏天冲，木星胜之也。）又或遇壬子木运先天而至者，中木运抑之也。（壬以阳木有余，其气先
天而至，岁运遇之，乃能胜土，壬子壬午皆同。）升天不前，即风埃四起，时举埃昏，雨湿不化；民病风厥涎潮，偏痹不
随，胀满。（土郁不前，木之胜也，故在天则风起，雨湿不化，在民则肝强脾病。）久而伏郁，即黄埃化疫也，民病夭亡，
脸肢腑黄胆满闭；湿令弗布，雨化乃微。（土主脾胃，胃气受抑，故至夭亡。脸为阳明之经，四肢皆主于脾，腑言大肠小
肠，皆属于胃，故为黄胆满闭等证。湿令弗布，皆土郁之化。）
是故丑未之年，少阳升天，主窒天蓬，胜之不前；（丑未年，太阴当迁正司天，而少阳相火，以上年在泉之右间，当
升为新岁太阴之左间，故畏天蓬，水胜也。）又或遇太阴未迁正者，即少阳未升天也。（丑未阴年不及，故太阴司天或未
迁正，则少阳左间亦不得其位。）水运以至者，升天不前，即寒雾反布，凛冽如冬，水复涸，冰再结，暄暖乍作，冷复布
之，寒暄不时。民病伏阳在内，烦热生中，心神惊骇，寒热间争。（辛丑辛未，皆水运之年，又遇天蓬，则相火被抑，升
天不前，其气令民病，较前巳亥年君火不升者尤甚。）以久成郁，即暴热乃生；赤风气瞳翳，化成郁疠，乃化作伏热内烦，
痹而生厥，甚则血溢。（此相火郁发为病，亦与前君火之郁者大同。）
是故寅申之年，阳明升天，主窒天英，胜之不前。（寅申年，少阳当迁正司天，而阳明燥金，以上年在泉之右间，当
升为新岁司天之左间，故畏天英，火胜制之也。）又或遇戊申戊寅，火运先天而至，金欲升天，火运抑之。（戊为阳火有
余，其气先天而至，岁运遇之，亦抑阳明。）升之不前，实时雨不降，西风数举，咸卤燥生；民病上热，喘嗽血溢。（燥
金气郁于地，故时雨不降、硝咸白见而燥生。火胜于上，故肺金受伤而喘嗽血溢。）久而化郁，即白埃翳雾，清生杀气；
民病胁满悲伤，寒鼽嚏嗌干，手拆皮肤燥。（金郁之发，肃杀气行，民病为胁满悲伤，金邪伐肝也。金气寒敛而燥，故为
寒鼽嚏嗌干等证。）
是故卯酉之年，太阳升天，主窒天芮，胜之不前；（卯酉年，阳明当迁正司天，而太阳寒水，以上年在泉之右间，当
升为新岁司天之左间，故畏天芮土胜也。）又遇阳明未迁正者，即太阳未升天也；（卯酉阴年，气有不及，凡司天阳明未
得迁正，则左间太阳亦不得其位。）土运以至，水欲升天，土运抑之。（己卯己酉，皆土运之年，亦能制抑太阳。）升之不
前，即湿而热蒸，寒生两间；民病注下，食不及化。（湿胜于上，寒郁于下，故气令民病如此。）久而成郁，冷来客热，
冰雹卒至；民病厥逆而哕，热生于内，气痹于外，足胫 疼，反生心悸懊热，暴烦而复厥。（水郁之发，寒气乃行，故民
病寒束于外，热生于中，为气痹厥逆等证。）
黄帝曰∶升之不前，余已尽知其旨，愿闻降之不下，可得明乎？岐伯曰∶悉乎哉问！是之谓天地微旨，可以尽陈斯
道，所谓升已必降也。（六气之运 ，右者升而左者降也。）至天三年，次岁必降，降而入地，始为左间也。（每气在天各
三年，凡左间一年，司天一年，右间一年。三年周尽，至次岁乃降而入地，为在泉之左间，亦周三年而复升于天也。）如
此升降往来，命之六纪者矣。（此六气之纪也。）
是故丑未之岁，厥阴降地，主窒地晶，胜而不前；（丑未岁，太阳当迁正在泉，而厥阴风木，以上年司天之右间，当
降为今岁在泉之左间，故畏地晶，金气窒之也。）又或遇少阴未退位，即厥阴未降下，（如上年子午岁气有余，司天少阴
不退位，则右间厥阴亦不能降下也。）金运以至中，金运承之，降之不下，抑之变郁。（即乙丑乙未岁也，亦能制抑厥阴，
郁而为病。）木欲降下，金承之，降而不下，苍埃远见，白气承之，风举埃昏，清躁行杀，霜露复下，肃杀布令。（木郁
金胜，故苍埃见而杀令布。）久而不降，抑之化郁，即作风躁相伏，暄而反清，草木萌动，杀霜乃下，蛰虫未见，惧清伤
脏。（清寒胜木，故草木萌动，霜乃杀之而蛰虫不见。其在民病亦惧清气之伤肝脏也。旧本无下虫二字，必脱简也，今增
补之。）
是故寅申之岁，少阴降地，主窒地玄，胜之不入；（寅申岁，厥阴当迁正在泉，而少阴君火，以上年司天之右间，当
降为今岁厥阴之左间，故畏地玄，木胜窒之也。）又或遇丙申丙寅，水运太过，先天而至。（丙以阳水，其气先天而至，
亦能制抑君火，使之不降。）君火欲降，水运承之，降而不下，即彤云才见，黑气反生，暄暖如舒，寒常布雪，凛冽复作，
天云惨凄。（皆寒水胜火之化。彤音同，赤也。）久而不降，伏之化郁，寒胜复热，赤风化疫；民病面赤心烦，头痛目眩
也，赤气彰而温病欲作也。（热郁于上，久而不降，故民多温热之病。）
是故卯酉之岁，太阴降地，主窒地苍，胜之不入。（卯酉年，少阴当迁正在泉，而太阴湿土，以上年司天之右间，当
降为今岁少阴之左间，故畏地苍，木胜窒之也。）又或少阳未退位者，即太阴未得降也；（如上年寅申，岁气有余，司天
少阳不退位，则右间太阴亦不能降下。）或木运以至。（丁卯丁酉年也。）木运承之，降而不下，即黄云见而青霞彰，郁蒸
作而大风，雾翳埃胜，折损乃作。（皆风木胜土之化。）久而不降也，伏之化郁，天埃黄气，地布湿蒸；民病四肢不举，
昏眩肢节痛，腹满填臆。（土气久郁不降，故天为黄气，地为湿蒸，人病在脾胃，故为四肢不举、满填胸臆等病。）
是故辰戌之岁，少阳降地，主窒地玄，胜之不入；（辰戌年，太阴当迁正在泉，而少阳相火，以上年司天之右间，当
降为今岁在泉之左间，故畏地玄，水胜窒之也。）又或遇水运太过，先天而至也。（丙辰丙戌年也。）水运承之，降而不下，
即彤云才见，黑气反生，暄暖欲生，冷气卒至，甚即冰雹也。（皆寒水胜火之化。此与上文寅申岁少阴不降者同义。）久
而不降，伏之化郁，冷气复热，赤风化疫；民病面赤心烦，头痛目眩也，赤气彰而热病欲作也。（少阳火郁为病，亦与上
文少阴不降同。）
是故巳亥之岁，阳明降地，主窒地彤，胜而不入。（巳亥年，少阳当迁正在泉，而阳明燥金，以上年司天之右间，当
降为今岁在泉之左间，故畏地彤，火气胜之也。）又或遇太阳未退位，即阳明未得降；（如上年辰戌，岁气有余，司天太
阳不退位，则右间阳明亦不能降下。）或火运以至。（癸巳癸亥年也。）火运承之不下，即天清而肃，赤气乃彰，暄热反作；
民皆昏倦，夜卧不安，咽干引饮，懊热内烦；大清朝暮，暄还复作。（金欲降而火承之，故清肃行而热反作也。热伤肺气，
故民为昏倦咽干等病。）久而不降，伏之化郁，天清薄寒，远生白气；民病掉眩，手足直而不仁，两胁作痛，满目KT
KT。（金气久郁于上，故清寒生而白气起。其于民病，则肝木受邪，故为掉眩胁目等证。）
是故子午之年，太阳降地，主窒地阜胜之，降而不入；（子午年，阳明当迁正在泉，而太阳寒水，以上年司天之右间，
当降为今岁在泉之左间，故畏地阜，土胜也。）又或遇土运太过，先天而至。（甲子甲午，阳土有余之岁也。）土运承之，
降而不入，即天彰黑气，暝暗凄惨才施，黄埃而布湿，寒化令气，蒸湿复令。（水为土胜，故黑气才施，黄埃即布，寒化
欲行而蒸湿复令也。）久而不降，伏之化郁，民病大厥，四肢重怠，阴痿少力；天布沉阴，蒸湿间作。（寒郁于上而湿制
之，则脾肾受邪，故民为寒厥四肢重怠阴痿等病，而沉阴蒸湿间作也。）
（《素问·遗篇本病论》）
黄帝问道：关于“天元九窒”的道理，我已经知道了，现在想请教气交失守是怎么回事？岐伯回答说：所谓气交失守，是指六气的升降、迁正（接替主位）、退位（让出主位），各有其固定的规律。如果上下之气不能按时交接，就称为失守。（这一篇承接上一篇，详细论述左右间气升降受阻的情况。《天元玉册》说：六气通常有三气在天，三气在地。每一气升天成为左间气，一气入地成为左间气，一气迁正成为司天，一气迁正成为在泉，一气退位成为天右间气，一气退位成为地右间气。气交相合，各安其位，到了该它当值的时候，天地之气相交，气候就会变得顺遂；如果天地之气不交，就会产生疾病。）因此，气交之位发生错乱，气交就会发生变化，这种变化违背常理，就会导致四时秩序混乱，万物生化不安，从而引发民众的疾病。（应当正常交接的没有交接，应当迁移的没有迁移，那么气交就会发生变异。天地失去了正常的政令，百姓就会生病。）黄帝说：升降受阻不前，我想听听其中的原因；气交发生变异，如何能够明确知晓？岐伯说：问得真高明啊！这说明您已经明白了大道。气交的变异，被称为天地的机微。（气交的变异，是吉凶的征兆，所以称为天地的机微。）只是想要下降而不能下降的，是因为地被窒塞所刑罚。（地星之气胜而阻碍其下降，义理详见下文。）又有五运太过，且先于时令而至的，也会导致交接不前。（五阳年中运太过，也能抑制升降之气。）只是想要上升而不能上升的，被中运所抑制；只是想要下降而不能下降的，也被中运所抑制。（甲年土运太过，能抑制水的升降。丙年水运太过，能抑制二火的升降。戊年火运太过，能抑制金的升降。庚年金运太过，能抑制木的升降。壬年木运太过，能抑制土的升降。）于是就有上升不前的、有下降不下的、有下降不下而上升至天的、有升降都不前的，像这样分别情况，就是气交的变异。变异的形态各异，各不相同，灾害也有轻重之分。（有天星在上窒塞的，有地气在下窒塞的，有中运在中抑制的，凡此三种情况的区分，使得气交的变异各不相同，灾害也有轻重之别。）黄帝说：我想听听气交遇到克制、会合、胜复、抑制的原因，以及由此形成的民众疾病的轻重程度如何？岐伯说：胜气与相气相会，导致伏抑，这就是原因。（六气有相遇、会合，有胜复、抑制，被抑制的就产生变异。）
因此，辰戌之年，木气欲升为主岁的司天之左间，但遇到天柱星（金星）当值，金克木，木气受制而不能前移；（辰戌岁，太阳寒水应当迁正为司天，而厥阴风木，作为上一年在泉的右间气，应当升为本年司天的左间气，所以畏惧天柱星，因为金星之气克制它。）又如果遇到庚戌年金运先天而至，中运的金气克制它，木运突然无法上升，金气便抑制了木运。（庚为阳金有余，其气先于时令而至，岁运遇到它，又能克制木气。庚戌年和庚辰年都是这种情况。）木气上升受阻，就会出现清气生而风气少，肃杀之气行于春季，露水霜雪再次降下，草木枯萎；民众容易患温疫早发，咽喉干燥，四肢胀满，关节疼痛。（清生风少等候，是金胜木衰的化象。金气肃杀行于春季，阴盛抑制阳气，所以民众患病表现为温疫、关节疼痛等证候。）如果郁结日久爆发，就会出现大风摧折树木，陨落之声杂乱；民众易患中风偏瘫，手足麻木不仁。（木郁久了，极必发，所以出现大风摧折等变故，而民众患病表现为中风等证候。）
因此，巳亥之年，君火欲升为天，但遇到天蓬星（水星）当值，水克火，火势受制而不能前移；（巳亥岁，厥阴风木应当迁正为司天，而少阴君火，作为上一年在泉的右间气，应当升为本年司天的左间气，所以畏惧天蓬星，因为水星之气克制它。）又如果厥阴风木尚未迁正，那么少阴君火也不能升天；（巳亥年为阴年，气化多不及，所以凡是司天的厥阴不得迁正，那么左间的少阴也不能得其位，阳年则不是这样。后文仿照此例。）水运到达中间，君火想要上升，而被中运的水气所抑制。（辛巳、辛亥年，都是水运不及的年份，但也能够制约抑制君火，因为巳亥是阴年，气化本就不及，弱能制弱。或者因为天蓬星窒塞，或者因为水运抑制，只要其中一种情况存在，都能使火气受胜而不能上升。后文仿照此例。）火气上升受阻，就会出现清寒之气再次发作，早晚寒冷；民众体内伏藏阳气，内生烦热，心神惊悸，寒热交替发作。（天蓬水气胜，火升不前，所以气候清寒，民众患病则是热郁不散。）日子久了形成郁结，就会突发炎热，赤色之风带来肿胀翳障，化为疫病，温疠暖作，赤色瘴气化为火疫，都表现为烦躁口渴，渴甚，治疗时用泄法可以停止。（火郁发作，所以突发炎热，民众患疫病疠气温瘴等疾病。泄去火热，病就可以停止。）
因此，子午之年，太阴湿土欲升为天，但遇到天冲星（木星）当值，木克土，土气受制而不能前移；（子午年，少阴君火应当迁正为司天，而太阴湿土，作为上一年在泉的右间气，应当升为本年少阴的左间气，所以畏惧天冲星，因为木星之气克制它。）又如果遇到壬子年木运先天而至，中运的木气抑制它。（壬为阳木有余，其气先于时令而至，岁运遇到它，就能克制土气，壬子、壬午年都是这种情况。）土气升天受阻，就会出现风沙四起，时常尘土飞扬，雨湿之气不能化育；民众易患风厥涎潮，半身不遂，腹胀满。（土郁不前，是木气胜所致，所以在天则风起，雨湿不化，在人则肝强脾病。）如果郁结潜伏日久，就会出现黄埃化为疫病，民众夭亡，面部肢体发黄，胆满闭塞；湿气不能布散，雨化的气象变得微弱。（土主脾胃，胃气受抑制，所以导致夭亡。脸为阳明之经，四肢皆由脾主，腑指大肠小肠，都属于胃，所以出现黄疸、胀满闭塞等证候。湿气不能布散，都是土郁的化象。）
因此，丑未之年，少阳相火欲升为天，但遇到天蓬星（水星）当值，水克火，火势受制而不能前移；（丑未年，太阴湿土应当迁正为司天，而少阳相火，作为上一年在泉的右间气，应当升为本年太阴的左间气，所以畏惧天蓬星，因为水气克制它。）又如果遇到太阴湿土尚未迁正，那么少阳相火也不能升天；（丑未年为阴年气化不及，所以太阴司天或未迁正，那么少阳左间也不能得其位。）水运到达，相火升天受阻，就会出现寒雾反而布散，凛冽如冬，水干涸，冰再结，温暖忽然出现，寒冷再次布散，寒暖不时。民众体内伏藏阳气，烦热生于内，心神惊骇，寒热交替争斗。（辛丑、辛未年，都是水运之年，又遇到天蓬星，那么相火被抑制，升天受阻，其气令民众患病，比之前巳亥年君火不升的情况更严重。）如果郁结日久爆发，就会突发炎热；赤色之风引起瞳子翳障，化为郁疠，化作伏热内烦，痹症而生厥逆，甚至血溢。（这是相火郁发为病，也与前面君火之郁大同小异。）
因此，寅申之年，阳明燥金欲升为天，但遇到天英星（火星）当值，火克金，金气受制而不能前移。（寅申年，少阳相火应当迁正为司天，而阳明燥金，作为上一年在泉的右间气，应当升为本年司天的左间气，所以畏惧天英星，因为火气克制它。）又如果遇到戊申、戊寅年，火运先天而至，金欲升天，被火运抑制。（戊为阳火有余，其气先于时令而至，岁运遇到它，也抑制阳明。）金气上升受阻，就会及时雨不降，西风多次吹举，咸卤燥气滋生；民众上部发热，气喘咳嗽，血溢。（燥金之气郁于地，所以时雨不降，硝咸白见而燥生。火胜于上，所以肺金受伤而喘嗽血溢。）如果郁结日久爆发，就会出现白色尘埃遮蔽雾气，清气生出杀气；民众胁肋胀满，悲伤，鼻塞流清涕打喷嚏，咽喉干燥，手部皮肤皲裂干燥。（金郁发作，肃杀之气运行，民众患病为胁满悲伤，是金邪伐肝。金气寒敛而燥，所以出现鼻塞流清涕、打喷嚏、咽喉干燥等证候。）
因此，卯酉之年，太阳寒水欲升为天，但遇到天芮星（土星）当值，土克水，水气受制而不能前移；（卯酉年，阳明燥金应当迁正为司天，而太阳寒水，作为上一年在泉的右间气，应当升为本年司天的左间气，所以畏惧天芮星，因为土气克制它。）又如果遇到阳明燥金尚未迁正，那么太阳寒水也不能升天；（卯酉年为阴年，气化有不及，凡是司天的阳明未得迁正，那么左间的太阳也不能得其位。）土运到达，水欲升天，被土运抑制。（己卯、己酉年，都是土运之年，也能制抑太阳。）水气上升受阻，就会出现湿而热蒸，寒生于两间；民众腹泻，食物不能消化。（湿胜于上，寒郁于下，所以气候令民众患病如此。）如果郁结日久爆发，寒冷来客居热位，冰雹突然到来；民众四肢厥逆并呃逆，热生于内，气痹于外，足胫疼痛，反生心悸懊恼发热，突发烦躁后又厥逆。（水郁发作，寒气乃行，所以民众患病为寒束于外，热生于中，出现气痹、厥逆等证候。）
黄帝说：上升受阻，我已经完全明白其旨意了，我想请教下降不下，可以讲清楚吗？岐伯说：问得真详尽啊！这叫做天地的精微奥旨，可以详尽陈述这个道理，所谓升尽必降。（六气的运行，右边升左边降。）到天上三年，次年必然下降，下降而入地，才成为左间气。（每气在天各三年，凡左间一年，司天一年，右间一年。三年周遍，至次年乃下降而入地，成为在泉的左间，也周遍三年后再升于天。）如此升降往来，称之为六纪。（这是六气的纪数。）
因此，丑未之年，厥阴风木欲降入地，但遇到地晶星（金星）当值，金克木，木气受制而不能前移；（丑未岁，太阳寒水应当迁正在泉，而厥阴风木，作为上一年司天的右间气，应当降为本年在泉的左间气，所以畏惧地晶星，因为金气窒塞它。）又如果遇到少阴君火尚未退位，那么厥阴风木也不能降下，（如上一年子午岁气有余，司天少阴不退位，那么右间厥阴也不能降下。）金运到达中间，金气承袭克制，下降不下，被抑制而化郁。（即乙丑、乙未年，也能制抑厥阴，郁结而为病。）木欲降下，金气承袭克制，下降不下，苍色的埃尘远现，白色的气承接其上，风举埃昏，清躁行杀，霜露再次落下，肃杀布令。（木郁金胜，所以苍埃见而杀令布。）如果久降不下，被抑制而化郁，就会作风躁相伏，温暖反而变清，草木萌动，杀霜乃下，蛰虫未见，畏惧清寒伤脏。（清寒胜木，所以草木萌动，霜乃杀之而蛰虫不见。其在民众患病也畏惧清气伤害肝脏。旧本无“下虫”二字，必定是脱简，现在增补上。）
因此，寅申之年，少阴君火欲降入地，但遇到地玄星（木星）当值，木克火，火势受制而不能进入；（寅申岁，厥阴风木应当迁正在泉，而少阴君火，作为上一年司天的右间气，应当降为本年厥阴的左间气，所以畏惧地玄星，因为木气克制它。）又如果遇到丙申、丙寅年，水运太过，先天而至。（丙为阳水，其气先于时令而至，也能制抑君火，使之不降。）君火欲降，水运承袭克制，下降不下，就会刚见到红云，黑气反而生成，温暖如舒，寒冷常布雪，凛冽再次发作，天云惨凄。（都是寒水胜火的化象。彤音同，赤色。）如果久降不下，伏抑而化郁，寒胜复热，赤风化疫；民众面色红赤心烦，头痛目眩，红色之气彰显而温病将要发作。（热郁于上，久降不下，所以民众多温热之病。）
因此，卯酉之年，太阴湿土欲降入地，但遇到地苍星（木星）当值，木克土，土气受制而不能进入；（卯酉年，少阴君火应当迁正在泉，而太阴湿土，作为上一年司天的右间气，应当降为本年少阴的左间气，所以畏惧地苍星，因为木气克制它。）又如果遇到少阳相火尚未退位，那么太阴湿土也不能降下；（如上一年寅申，岁气有余，司天少阳不退位，那么右间太阴也不能降下。）或者木运到达。（丁卯、丁酉年。）木运承袭克制，下降不下，就会黄云出现而青霞彰显，郁蒸大作而大风，雾翳埃胜，折损乃作。（都是风木胜土的化象。）如果久降不下，伏抑而化郁，天埃黄气，地布湿蒸；民众四肢不能举动，昏眩关节痛，腹部胀满填塞胸臆。（土气久郁不降，所以天为黄气，地为湿蒸，人病在脾胃，所以出现四肢不举、满填胸臆等病。）
因此，辰戌之年，少阳相火欲降入地，但遇到地玄星（木星）当值，木克火，火势受制而不能进入；（辰戌年，太阴湿土应当迁正在泉，而少阳相火，作为上一年司天的右间气，应当降为本年在泉的左间气，所以畏惧地玄星，因为水气克制它——注：此处原文括号内解释有误，地玄通常对应水或木，根据上下文“水胜窒之”，应指水气。但按星名对应，天蓬/地玄常指水。此处依原文逻辑翻译。）又如果遇到水运太过，先天而至。（丙辰、丙戌年。）水运承袭克制，下降不下，就会刚见到红云，黑气反而生成，温暖欲生，冷气突然来到，严重时就是冰雹。（都是寒水胜火的化象。这与上文寅申岁少阴不降的意义相同。）如果久降不下，伏抑而化郁，冷气复热，赤风化疫；民众面色红赤心烦，头痛目眩，红色之气彰显而热病将要发作。（少阳火郁为病，也与上文少阴不降相同。）
因此，巳亥之年，阳明燥金欲降入地，但遇到地彤星（火星）当值，火克金，金气受制而不能进入；（巳亥年，少阳相火应当迁正在泉，而阳明燥金，作为上一年司天的右间气，应当降为本年在泉的左间气，所以畏惧地彤星，因为火气克制它。）又如果遇到太阳寒水尚未退位，那么阳明燥金也不能降下；（如上一年辰戌，岁气有余，司天太阳不退位，那么右间阳明也不能降下。）或者火运到达。（癸巳、癸亥年。）火运承袭克制，下降不下，就会天清而肃，赤气乃彰，温暖炎热反而发作；民众都昏倦，夜卧不安，咽喉干燥想喝水，心中懊恼发热；大清早到傍晚，温暖又发作。（金欲降而火承之，所以清肃行而热反作。热伤肺气，所以民众出现昏倦咽干等病。）如果久降不下，伏抑而化郁，天清薄寒，远处生出白气；民众出现震颤眩晕，手足僵硬麻木不仁，两胁作痛，满眼模糊不清。（金气久郁于上，所以清寒生而白气起。其在民众患病，则肝木受邪，所以出现震颤眩晕、胁痛、目疾等证候。）
因此，子午之年，太阳寒水欲降入地，但遇到地阜星（土星）当值，土克水，水气受制，下降而不能进入；（子午年，阳明燥金应当迁正在泉，而太阳寒水，作为上一年司天的右间气，应当降为本年在泉的左间气，所以畏惧地阜星，因为土气克制它。）又如果遇到土运太过，先天而至。（甲子、甲午年，阳土有余的年份。）土运承袭克制，下降不入，就会天显黑气，昏暗凄惨刚刚施展，黄埃布散湿气，寒化令气，蒸湿复令。（水为土胜，所以黑气才施，黄埃即布，寒化欲行而蒸湿复令也。）如果久降不下，伏抑而化郁，民众患大厥，四肢沉重懈怠，阳痿少力；天布沉阴，蒸湿间作。（寒郁于上而湿制之，则脾肾受邪，所以民众出现寒厥、四肢重怠、阳痿等病，而沉阴蒸湿间作也。）
(Su Wen · Yi Pian Ben Bing Lun)
The Yellow Emperor asked: Regarding the "Nine Obstructions of Tian Yuan," I already understand them. I wish to hear about Qi intersection (Qi Jiao, the interaction between Heaven and Earth Qi). What is meant by "loss of adherence" (Shi Shou)?
Qibo replied: It refers to the ascending and descending, moving into position (Qian Zheng, taking over the main role), and retiring from position (Tui Wei, yielding the main role) of the Six Qi. Each has its specific principles. If the upper and lower Qi do not advance as scheduled, it is called loss of adherence. (This chapter continues from the previous one, detailing the obstruction of the ascending and descending of the left and right interstitial Qi. The *Tian Yuan Yu Ce* states: Of the Six Qi, three are usually in Heaven and three on Earth. For each Qi, one ascends to Heaven to become the left interstitial Qi, one descends to Earth to become the left interstitial Qi, one moves into position to become the Si Tian (Chief of Heaven), one moves into position to become the Zai Quan (Chief of Earth), one retires from position to become the Right Interstitial Qi of Heaven, and one retires from position to become the Right Interstitial Qi of Earth. When Qi intersects and combines, occupying their proper positions, when the time comes, Heaven and Earth Qi intersect, leading to smooth transformation; if Heaven and Earth do not intersect, diseases arise.) Therefore, when the positions of Qi intersection are exchanged or misplaced, Qi intersection changes. This change deviates from the norm, causing the four seasons to lose order, the hundred transformations to become unstable, and thus inducing diseases among the people. (When what should be normal does not occur, and when migration should happen but does not, Qi intersection undergoes variation. If Heaven and Earth lose their regular governance, the myriad people will suffer illness.)
The Yellow Emperor said: I wish to hear the reasons for the failure to ascend and descend. How can we clearly identify the variations in Qi intersection?
Qibo said: Your question is profound! You have understood the Dao. Variations in Qi intersection are referred to as the mechanisms of Heaven and Earth. (Variations in Qi intersection are omens of auspiciousness or inauspiciousness, hence called the mechanisms of Heaven and Earth.) If a Qi wishes to descend but cannot, it is because the Earth obstructs and penalizes it. (Earthly stars' excessive influence prevents descent; see below for details.) Furthermore, if the Five Yun (Five Movements) are excessive and arrive before their time, intersection will fail to proceed. (In years of Yang Yun with excess, the excessive movement can also suppress the ascending and descending Qi.) If a Qi wishes to ascend but cannot, it is suppressed by the Central Yun (Zhong Yun); if it wishes to descend but cannot, it is also suppressed by the Central Yun. (In Jia years, Earth Yun is excessive and can suppress Water's ascent and descent. In Bing years, Water Yun is excessive and can suppress the Two Fires' ascent and descent. In Wu years, Fire Yun is excessive and can suppress Metal's ascent and descent. In Geng years, Metal Yun is excessive and can suppress Wood's ascent and descent. In Ren years, Wood Yun is excessive and can suppress Earth's ascent and descent.) Thus, there are cases where ascent fails, descent fails, descent fails while ascent reaches Heaven, and both ascent and descent fail. Distinguishing these situations constitutes the variation of Qi intersection. The forms of variation differ, each being unique, and disasters vary in severity. (There are obstructions by Heavenly stars above, obstructions by Earthly Qi below, and suppression by Central Yun in the middle. These three distinctions cause different variations in Qi intersection, resulting in varying degrees of disaster.)
The Yellow Emperor said: I wish to hear the causes of encounters, meetings, overcoming, and suppression in Qi intersection, and how severe the resulting diseases among the people are.
Qibo said: When victorious and subordinate Qi meet, suppression occurs, which is the cause. (Six Qi encounter and meet; there is victory and suppression. The suppressed Qi generates variation.)
Therefore, in Chen-Xu years, Wood Qi wishes to ascend [to become the left interstitial Qi of Si Tian], but encounters Tian Zhu (Jupiter/Venus context implies Metal overcoming Wood here, traditionally Tian Zhu is associated with Metal/Jupiter in some contexts or specifically Venus/Metal in this specific textual tradition regarding "Tian Zhu"). Let us follow the text's explanation: Tian Zhu represents Metal overcoming Wood. Wood Qi is overcome and cannot advance. (In Chen-Xu years, Taiyang Cold Water should move into position as Si Tian. Ju Yin Wind Wood, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Si Tian. Thus, it fears Tian Zhu, as Metal star overcomes it.) Additionally, if Geng Xu Metal Yun arrives early (Xian Tian), the Central Yun overcomes it, and suddenly Wood Yun fails to ascend, with Metal suppressing Wood. (Geng represents Yang Metal with excess; its Qi arrives before its time. Encountering this in the annual Yun, it again overcomes Wood. Geng Xu and Geng Chen are the same.) When ascent fails, clear Qi arises while wind is scarce; desiccating energy acts in spring; dew and frost fall again, causing grass and trees to wither. People suffer from early-onset warm epidemics, dry throat and pharynx, fullness in the four limbs, and pain in all joints. (Clear Qi arising with little wind indicates Metal overcoming Wood and Wood declining. Metal's desiccating energy acts in spring; Yin excess suppresses Yang, so people suffer from warm epidemics and joint pain.) If depression lasts long and erupts, great winds destroy and break branches, with falling sounds chaotic; people suffer from apoplexy and hemiplegia, with numbness in hands and feet. (Wood depression, once prolonged, must eventually erupt, causing great winds and destruction, and people suffer from stroke-like conditions.)
Therefore, in Si-Hai years, Jun Huo (Ministerial Fire/Emperor Fire) wishes to ascend to Heaven, but is blocked by Tian Peng (Water Star), overcome and unable to advance. (In Si-Hai years, Ju Yin should move into position as Si Tian. Shao Yin Jun Huo, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Si Tian. Thus, it fears Tian Peng, as Water star overcomes it.) Also, if Ju Yin has not yet moved into position, then Shao Yin cannot ascend to Heaven. (Si-Hai are Yin years, where Qi is often insufficient. Thus, if the Si Tian Ju Yin does not move into position, the left interstitial Shao Yin also cannot take its place; this is not the case for Yang years. The following examples follow this pattern.) If Water Yun arrives in the middle, Jun Huo desires to ascend but is suppressed by the Central Water Yun. (In Xin Si and Xin Hai years, Water Yun is insufficient, yet it can still restrain and suppress Jun Huo. Because Si-Hai are Yin years, Qi is inherently insufficient, so weakness can control weakness. Whether blocked by Tian Peng or suppressed by Water Yun, either condition allows Water to overcome Fire and prevent ascent. The following examples follow this pattern.) When ascent fails, clear cold returns, and cold arises morning and night. People suffer from latent Yang, internal irritability and heat, heart-spirit palpitations and fright, and alternating cold and heat. (Tian Peng Water overcomes, Fire ascent fails, so climate is clear and cold. People's disease involves heat stagnation not dispersing.) If depression lasts long, sudden heat arrives; red wind brings swelling and cataracts, transforming into epidemics; warm plagues and warmth arise; red miasma transforms into fire epidemics, all presenting with irritability, restlessness, and thirst. Severe thirst can be stopped by draining methods. (Fire depression eruption causes sudden heat, and people suffer from epidemic fevers, warm miasmas, etc. Draining the fire-heat stops the disease.)
Therefore, in Zi-Wu years, Tai Yin Shi Tu (Taiyin Damp Earth) wishes to ascend to Heaven, but is blocked by Tian Chong (Jupiter/Wood context implies Wood overcoming Earth), overcome and unable to advance. (In Zi-Wu years, Shao Yin should move into position as Si Tian. Tai Yin Damp Earth, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Shao Yin. Thus, it fears Tian Chong, as Wood star overcomes it.) Or if Ren Zi Wood Yun arrives early, the Central Wood Yun suppresses it. (Ren represents Yang Wood with excess; its Qi arrives before its time. Encountering this in the annual Yun, it overcomes Earth. Ren Zi and Ren Wu are the same.) When ascent to Heaven fails, wind and dust rise everywhere, frequent dust storms occur, and rain/dampness fails to transform. People suffer from wind-jue with salivary flooding, hemiplegia and inability to move, and abdominal fullness. (Earth depression failing to ascend is due to Wood overcoming. In Heaven, wind rises and rain/dampness fails to transform; in people, Liver becomes strong and Spleen suffers.) If depression lingers and festers, yellow dust transforms into epidemics; people suffer premature death, yellowing of face and limbs, gallbladder fullness and closure; damp commands fail to spread, and rain-transformations become weak. (Earth governs Spleen and Stomach; Stomach Qi is suppressed, leading to premature death. The face is the channel of Yangming; limbs are governed by Spleen; fu organs refer to Large and Small Intestines, belonging to Stomach, hence jaundice, fullness, and closure. Dampness failing to spread is the transformation of Earth depression.)
Therefore, in Chou-Wei years, Shao Yang Xiang Huo (Ministerial Fire) wishes to ascend to Heaven, but is blocked by Tian Peng (Water Star), overcome and unable to advance. (In Chou-Wei years, Tai Yin should move into position as Si Tian. Shao Yang Xiang Huo, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Tai Yin. Thus, it fears Tian Peng, as Water overcomes it.) Or if Tai Yin has not yet moved into position, then Shao Yang cannot ascend to Heaven. (Chou-Wei are Yin years of insufficiency. Thus, if Tai Yin Si Tian has not moved into position, the left interstitial Shao Yang also cannot take its place.) If Water Yun arrives, ascent to Heaven fails. Clear cold returns, mist spreads, biting cold like winter; water dries up, ice forms again; warmth suddenly appears, then cold spreads again; cold and warmth are irregular. People suffer from latent Yang inside, irritability and heat generated within, heart-spirit fright and horror, and alternating cold and heat struggles. (Xin Chou and Xin Wei are Water Yun years. Encountering Tian Peng, Ministerial Fire is suppressed, ascent fails. Its qi causes illness more severely than the Si-Hai year's Emperor Fire non-ascent.) If depression lasts long, sudden heat arises; red wind causes pupil cataracts, transforming into depressed plagues, then into latent heat causing internal irritability, bi syndrome with jue, and even blood hemorrhage. (This is Ministerial Fire depression erupting into disease, largely similar to the previous Emperor Fire depression.)
Therefore, in Yin-Shen years, Yang Ming Zao Jin (Yangming Dry Metal) wishes to ascend to Heaven, but is blocked by Tian Ying (Fire Star), overcome and unable to advance. (In Yin-Shen years, Shao Yang should move into position as Si Tian. Yang Ming Dry Metal, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Si Tian. Thus, it fears Tian Ying, as Fire overcomes it.) Or if Wu Shen and Wu Yin Fire Yun arrive early, Metal desires to ascend but is suppressed by Fire Yun. (Wu represents Yang Fire with excess; its Qi arrives before its time. Encountering this in the annual Yun, it also suppresses Yangming.) When ascent fails, timely rain does not fall, west winds blow frequently, saline dryness arises. People suffer from upper heat, wheezing cough, and blood hemorrhage. (Dry Metal Qi depresses on Earth, so timely rain does not fall, saline/white signs appear, and dryness arises. Fire overcomes above, so Lung Metal is injured, causing wheezing, cough, and blood hemorrhage.) If depression lasts long and erupts, white dust obscures fog, clear Qi generates killing energy. People suffer from hypochondriac fullness and sorrow, cold nasal congestion, sneezing, dry throat, and cracked, dry skin on hands. (Metal depression eruption, desiccating killing energy acts. People suffer from hypochondriac fullness and sorrow, Metal evil attacking Liver. Metal Qi is cold, contracting, and dry, hence cold nasal congestion, sneezing, and dry throat.)
Therefore, in Mao-You years, Tai Yang Han Shui (Taiyang Cold Water) wishes to ascend to Heaven, but is blocked by Tian Rui (Earth Star), overcome and unable to advance. (In Mao-You years, Yang Ming should move into position as Si Tian. Tai Yang Cold Water, as the right interstitial Qi of the previous year's Zai Quan, should ascend to become the left interstitial Qi of this year's Si Tian. Thus, it fears Tian Rui, as Earth overcomes it.) Or if Yang Ming has not yet moved into position, then Tai Yang cannot ascend to Heaven. (Mao-You are Yin years with Qi insufficiency. Thus, if Si Tian Yang Ming has not moved into position, the left interstitial Tai Yang also cannot take its place.) If Earth Yun arrives, Water desires to ascend but is suppressed by Earth Yun. (Ji Mao and Ji You are Earth Yun years, which can also suppress Taiyang.) When ascent fails, dampness steams with heat, cold arises in the intervals. People suffer from diarrhea, food undigested. (Dampness overcomes above, cold depresses below, so the climate causes such illnesses.) If depression lasts long, cold comes to occupy heat, hailstones arrive suddenly. People suffer from jue逆 (rebellious cold/limb cold) and hiccups, heat generated internally, Qi bi (obstruction) externally, painful calves and shins, palpitations, internal restlessness and heat, sudden irritability followed by jue. (Water depression eruption, Cold Qi acts. People suffer from cold binding outside, heat generating inside, causing Qi bi, jue, etc.)
The Yellow Emperor said: I have fully understood the principle of ascent failure. I wish to hear about descent failure. Can you clarify it?
Qibo said: Your question is thorough! This is called the subtle purport of Heaven and Earth. We can fully expound this Dao: what ascends must eventually descend. (Of the Six Qi movements, those on the right ascend, and those on the left descend.) After spending three years in Heaven, the next year it must descend. Descending and entering Earth, it becomes the left interstitial Qi. (Each Qi spends three years in Heaven: one year as left interstitial, one year as Si Tian, one year as right interstitial. After three years cycle complete, in the next year it descends and enters Earth to become the left interstitial of Zai Quan, cycling three years before ascending to Heaven again.) Such ascending and descending cycles are called the Six Periods (Liu Ji). (These are the periods of the Six Qi.)
Therefore, in Chou-Wei years, Ju Yin Feng Mu (Ju Yin Wind Wood) wishes to descend to Earth, but is blocked by Di Jing (Metal Star), overcome and unable to advance. (In Chou-Wei years, Taiyang should move into position as Zai Quan. Ju Yin Wind Wood, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Zai Quan. Thus, it fears Di Jing, as Metal Qi obstructs it.) Or if Shao Yin has not yet retired from position, then Ju Yin cannot descend. (If the previous year Zi-Wu had excess Qi, and Si Tian Shao Yin did not retire, then the right interstitial Ju Yin also cannot descend.) If Metal Yun arrives in the middle, Metal Yun succeeds it, descent fails, suppression leads to depression. (These are Yi Chou and Yi Wei years, which can also suppress Ju Yin, causing depression and disease.) Wood desires to descend, Metal succeeds and suppresses, descent fails. Pale dust is seen afar, White Qi follows. Wind raises dust haze, clear dryness acts with killing energy, frost and dew fall again, desiccating commands spread. (Wood depression, Metal overcomes, so pale dust appears and killing commands spread.) If descent fails for long, suppression transforms into depression. Wind and dryness lie hidden together; warmth turns to cold. Grass and trees sprout, but killing frost falls. Hibernating insects are not seen. Fear that clear cold injures the Zang organs. (Clear cold overcomes Wood, so grass/trees sprout, frost kills them, hibernating insects hide. In people, fear that Clear Qi injures the Liver. Old texts lack "lower insects," likely a missing slip; now added.)
Therefore, in Yin-Shen years, Shao Yin Jun Huo (Shao Yin Emperor Fire) wishes to descend to Earth, but is blocked by Di Xuan (Wood/Water context implies Wood overcoming Fire here, text says "Mu Sheng Zhi" - Wood overcomes), overcome and unable to enter. (In Yin-Shen years, Ju Yin should move into position as Zai Quan. Shao Yin Jun Huo, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Ju Yin. Thus, it fears Di Xuan, as Wood overcomes it.) Or if Bing Shen and Bing Yin Water Yun is excessive and arrives early. (Bing represents Yang Water; its Qi arrives before its time, also suppressing Jun Huo, preventing descent.) Jun Huo desires to descend, Water Yun succeeds and suppresses, descent fails. Red clouds appear briefly, Black Qi generates instead. Warmth feels comfortable, but cold often spreads snow, biting cold returns, sky clouds look grim. (All are transformations of Cold Water overcoming Fire. Tong means red.) If descent fails for long, suppression transforms into depression. Cold overcomes then heat returns; red wind transforms into epidemics. People suffer from red face, irritability, headache, and dizziness. Red Qi manifests, and warm diseases are about to arise. (Heat depresses above, fails to descend for long, so people often suffer warm diseases.)
Therefore, in Mao-You years, Tai Yin Shi Tu (Taiyin Damp Earth) wishes to descend to Earth, but is blocked by Di Cang (Wood Star), overcome and unable to enter. (In Mao-You years, Shao Yin should move into position as Zai Quan. Tai Yin Damp Earth, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Shao Yin. Thus, it fears Di Cang, as Wood overcomes it.) Or if Shao Yang has not yet retired from position, then Tai Yin cannot descend. (If the previous year Yin-Shen had excess Qi, and Si Tian Shao Yang did not retire, then the right interstitial Tai Yin also cannot descend.) Or if Wood Yun arrives. (Ding Mao and Ding You years.) Wood Yun succeeds and suppresses, descent fails. Yellow clouds appear, green rosy clouds manifest. Depressive steaming causes great winds, fog, haze, and dust prevail, damage occurs. (All are transformations of Wind Wood overcoming Earth.) If descent fails for long, suppression transforms into depression. Sky dusts with yellow Qi, Earth spreads damp steaming. People suffer from inability to move limbs, dizziness, joint pain, abdominal fullness filling the chest. (Earth Qi depressed long without descending, so Sky is yellow Qi, Earth is damp steaming. Human disease is in Spleen/Stomach, hence inability to move limbs, fullness filling chest.)
Therefore, in Chen-Xu years, Shao Yang Xiang Huo (Ministerial Fire) wishes to descend to Earth, but is blocked by Di Xuan (Water Star), overcome and unable to enter. (In Chen-Xu years, Tai Yin should move into position as Zai Quan. Shao Yang Xiang Huo, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Zai Quan. Thus, it fears Di Xuan, as Water overcomes it.) Or if Water Yun is excessive and arrives early. (Bing Chen and Bing Xu years.) Water Yun succeeds and suppresses, descent fails. Red clouds appear briefly, Black Qi generates instead. Warmth wants to arise, cold qi arrives suddenly, sometimes hailstones. (All are transformations of Cold Water overcoming Fire. Same meaning as Shao Yin non-descent in Yin-Shen years above.) If descent fails for long, suppression transforms into depression. Cold qi returns to heat, red wind transforms into epidemics. People suffer from red face, irritability, headache, dizziness. Red Qi manifests, and heat diseases are about to arise. (Ministerial Fire depression disease is same as Shao Yin non-descent above.)
Therefore, in Si-Hai years, Yang Ming Zao Jin (Yangming Dry Metal) wishes to descend to Earth, but is blocked by Di Tong (Fire Star), overcome and unable to enter. (In Si-Hai years, Shao Yang should move into position as Zai Quan. Yang Ming Dry Metal, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Zai Quan. Thus, it fears Di Tong, as Fire overcomes it.) Or if Tai Yang has not yet retired from position, then Yang Ming cannot descend. (If the previous year Chen-Xu had excess Qi, and Si Tian Tai Yang did not retire, then the right interstitial Yang Ming also cannot descend.) Or if Fire Yun arrives. (Gui Si and Gui Hai years.) Fire Yun succeeds and suppresses, descent fails. Sky is clear and austere, Red Qi manifests. Warmth and heat act inversely. People are all lethargic, sleep poorly at night, throat dry, desire drinking, internal restlessness and heat. Early morning to dusk, warmth returns. (Metal desires to descend, Fire succeeds it, so clear/austere acts but heat reverses. Heat injures Lung Qi, so people suffer lethargy, dry throat, etc.) If descent fails for long, suppression transforms into depression. Sky is clear with thin cold, distant White Qi arises. People suffer from tremors and dizziness, stiff and numb hands/feet, bilateral hypochondriac pain, blurred vision. (Metal Qi depressed above for long, so clear/cold arises and White Qi starts. In people, Liver Wood is affected, hence tremors, dizziness, hypochondriac pain, eye issues.)
Therefore, in Zi-Wu years, Tai Yang Han Shui (Taiyang Cold Water) wishes to descend to Earth, but is blocked by Di Fu (Earth Star), overcome, descent fails to enter. (In Zi-Wu years, Yang Ming should move into position as Zai Quan. Tai Yang Cold Water, as the right interstitial Qi of the previous year's Si Tian, should descend to become the left interstitial Qi of this year's Zai Quan. Thus, it fears Di Fu, as Earth overcomes it.) Or if Earth Yun is excessive and arrives early. (Jia Zi and Jia Wu years, years of Yang Earth excess.) Earth Yun succeeds and suppresses, descent fails to enter. Sky shows Black Qi, darkness and gloom just begin, Yellow Dust spreads dampness, Cold Transformation command Qi, steaming dampness returns. (Water is overcome by Earth, so Black Qi begins, Yellow Dust spreads, Cold Transformation wants to act but steaming dampness returns.) If descent fails for long, suppression transforms into depression. People suffer from major jue (fainting/cold extremities), heavy and lazy limbs, impotence and lack of strength. Sky spreads heavy Yin, steaming dampness alternates. (Cold depresses above and is controlled by Damp, so Spleen/Kidney are affected. Hence people suffer cold jue, heavy limbs, impotence, and heavy Yin/steaming dampness alternate.)