补者，补其虚也。经曰∶不能治其虚，安问其余。又曰∶邪之所凑，其气必虚。又曰∶
精气夺则虚。又曰∶虚者补也。补之为义，大矣哉！然有当补不补，误人者；有不当补而补
误人者；亦有当补而不分气血，不辨寒热，不识开合，不知缓急，不分五脏，不明根本，
不深求调摄之方以误人者。是不可不讲也。
何谓当补不补？夫虚者，损之渐，损者，虚之积也。初时不觉，久则病成。假如阳虚不
补，则气日消。阴虚不补，则血日耗。消且耗焉，则天真荣卫之气渐绝，而亏损成矣，虽欲
补之，将何及矣。又有大虚之证，内实不足，外似有余，脉浮大而涩，面赤火炎，身浮头眩
烦躁不宁，此为出汗晕脱之机，更有精神浮散，彻夜不寐者，其祸尤速，法当养荣、归脾
辈，加敛药以收摄元神。俾浮散之气，退藏于密，庶几可救。复有阴虚火亢，气逆上冲，不
得眠者，法当滋水以制之，切忌苦寒泻火之药，反伤真气。若误清之，去生远矣。古人有言
至虚有盛候，反泻衔冤者此也，此当补不补之误也。
然亦有不当补而补者何也？病有脉实证实，不能任补者，固无论矣，即其人本体素虚，
而客邪初至，病势方张，若骤补之，未免闭门留寇。更有大实之症，积热在中，脉反细涩，
神昏体倦，甚至憎寒振栗，欲着复衣，酷肖虚寒之象，而其人必有唇焦口燥，便闭溺赤诸症
与真虚者相隔天渊，倘不明辨精切，误投补剂，陋矣。古人有言，大实有羸状，误补益疾
者此也。此不当补而补之之误也。
然亦有当补而补之不分气、血，不辨寒、热者何也？经曰∶气主煦之，血主濡之。气用
四君子汤，凡一切补气药，皆从此出也。血用四物汤，凡一切补血药，皆从此出也。然而少
火者，生气之原。丹田者，出气之海。补气而不补火者非也。不思少火生气，而壮火即食气
譬如伤暑之人，四肢无力；湿热成痿，不能举动者，火伤气也。人知补火可以益气，而不
知清火亦所以益气，补则同而寒、热不同也。又如血热之症，宜补血、行血以清之，血寒之
症，宜温经养血以和之。立斋治法，血热而吐者，谓之阳乘阴，热迫血而妄行也，治用四生
丸、六味汤；血寒而吐者，谓之阴乘阳，如天寒地冻，水凝成冰也，治用理中汤加当归。医
家常须识此，勿令误也。更有去血过多，成升斗者，无分寒热，皆当补益，所谓血脱者益其
气，乃阳生阴长之至理。盖有形之血，不能速生，无形之气，所当急固。以无形生有形，先
天造化，本如是耳。此气血、寒热之分也。
然又有补之而不识开合、不知缓急者何也？天地之理，有合必有开，用药之机，有补必
有泻，如补中汤用参 ，必用陈皮以开之；六味汤用熟地，即用泽泻以导之，古人用药，补
正必兼泻邪，邪去则补自得力。又况虚中挟邪，正当开其一面，戢我民众，攻彼贼寇，或纵
或擒，有收有放，庶几贼退民安，而国本坚固，更须酌其邪正之强弱，而用药多寡得宜，方
为合法。是以古方中，有补、散并行者，参苏饮、益气汤是也。有消、补并行者，枳术丸、
理中丸是也。有攻、补并行者，泻心汤、硝石丸是也。有温、补并行者，治中汤、参附汤是
也。有清、补并行者，参连饮、人参白虎汤是也。更有当峻补者，有当缓补者，有当平补者
如极虚之人，垂危之病，非大剂汤液，不能挽回。予尝用参、附煎膏，日服数两，而救阳
微将脱之证。又尝用参、麦煎膏，服至数两，而救津液将枯之证。亦有无力服参，而以 、
术代之者。随时处治，往往有功。至于病邪未尽，元气虽虚，不任重补，则从容和缓以补之
相其机宜，循序渐进，脉症相安，渐为减药，谷肉果菜，食养尽之，以底于平康。其有体
质素虚，别无大寒、大热之证，欲服丸散以葆真元者，则用平和之药，调理气血，不敢妄使
偏僻之方，久而争胜，反有伤也。此开合、缓急之意也。
然又有补之而不分五脏者何也？夫五脏有正补之法，有相生而补之之法。《难经》曰∶
损其肺者，益其气；损其心者，和其荣卫；损其脾者，调其饮食、适其寒温；损其肝者，缓
其中；损其肾者，益其精∶此正补也。又如肺虚者补脾，土生金也；脾虚者补命门，火生土
也；心虚者补肝，木生火也；肝虚者补肾，水生木也；肾虚者补肺，金生水也∶此相生而补
之也。而予更有根本之说焉，胚胎始兆，形骸未成，先生两肾，肾者、先天之根本也。HT
地一声，一事未知，先求乳食，是脾者、后天之根本也。然而先天之中，有水有火，水曰真
阴，火曰真阳。名之曰真，则非气、非血、而为气血之母。生身生命全赖乎此。周子曰∶无
极之真，二五之精，妙合而凝，凝然不动，感而遂通，随吾神以为往来者此也。古人深知此
理，用六味滋水，八味补火，十补、斑龙，水火兼济，法非不善矣。然而以假补真，必其真
者，未曾尽丧，庶几有效。若先天祖气荡然无存，虽有灵芝，亦难续命，而况庶草乎！至于
后天根本，尤当培养，不可忽视。经曰∶安谷则昌，绝谷则危。又云∶粥浆入胃，则虚者活
古人诊脉，必曰胃气。制方则曰补中，又曰归脾、健脾者，良有以也。夫饮食入胃，分布
五脏，灌溉周身，如兵家之粮饷，民间之烟火，一有不继，兵民离散矣。然而因饿致病者固
多，而因伤致病者，亦复不少。过嗜肥甘则痰生，过嗜醇酿则饮积，瓜果乳酥，湿从内受，
发为肿满泻利。五味偏啖，久而增气，皆令夭殃。可不慎哉！是知脾肾两脏，皆为根本，不
可偏废。古人或谓补脾不如补肾者，以命门之火，可生脾土也；或谓补肾不如补脾者，以饮
食之精，自能下注于肾也。须知脾弱而肾不虚者，则补脾为亟，肾弱而脾不虚者，则补肾为
先，若脾肾两虚，则并补之。药既补矣，更加摄养有方，斯为善道。谚有之曰∶药补不如食
补。我则曰∶食补不如精补，精补不如神补。节饮食，惜精神，用药得宜，病有不痊焉者寡
补法，就是补充人体的虚弱。经典医籍说：如果不能治疗虚证，又怎能顾及其他病症呢？又说：邪气聚集的地方，正气必然虚弱。又说：精气耗损就会造成虚证。又说：虚证应当用补法治疗。补法的意义，真是宏大啊！然而，有该补而不补，从而误害病人的；有不该补而乱补，从而误害病人的；也有该补却分不清气血、不辨别寒热、不懂开合之法、不知缓急之度、不分五脏虚实、不明根本所在，且不深入探究调养方法，从而误害病人的。这些情况，是不可不详细研讨的。
什么叫“当补不补”的错误？所谓虚证，是损伤逐渐积累的结果；所谓损伤，是虚证长期积聚而成的。起初并不觉得怎样，时间久了疾病就形成了。假如阳虚不补，阳气就会日渐消减。阴虚不补，阴血就会日渐耗损。既消且耗，那么先天赋予的真气和营卫之气就会逐渐断绝，亏损也就形成了，即使想再补，也来不及了。又有大虚的证候，内部实质不足，外部看似有余，脉象浮大而涩，面色红赤如火焰燃烧，身体浮肿头晕，烦躁不安，这是汗出过多导致阳气脱失的先兆，更有精神涣散，整夜无法入睡的情况，其危害尤其迅速，治法应当采用养荣汤、归脾汤这类方剂，加入收敛药物以收摄元神。使浮散的气机退藏于内，或许还可以挽救。再有阴虚火旺，气逆上冲，导致不得睡眠的，治法应当滋补肾水以制约虚火，切忌使用苦寒泻火的药物，否则会反伤真气。如果误用清热药，离康复就远矣。古人有句话说：“至虚有盛候，反泻衔冤”，指的就是这种情况，这就是“当补不补”的错误。
然而也有“不当补而补”的情况，为什么呢？有病证表现为脉实证实，不能承受补法的，这自然不用说；即使是其人本体素来虚弱，但外感邪气刚刚侵袭，病势正盛，如果骤然进补，未免如同“闭门留寇”。更有大实的病证，积热在体内，脉象反而细涩，神志昏迷身体疲倦，甚至憎恶寒冷战栗，想要多穿衣服，酷似虚寒的表象，但此人必定伴有嘴唇焦裂口燥、大便闭塞小便赤黄等症状，这与真正的虚证相隔如天地之差，如果不明辨精切，误投补剂，那就太浅陋了。古人有话说：“大实有羸状，误补益疾”，指的就是这种情况，这就是“不当补而补”的错误。
然而也有该补却补得不分气血、不辨寒热的情况，为什么呢？经典说：气主温煦，血主濡润。补气用四君子汤，凡是所有补气药，都由此衍生而来。补血用四物汤，凡是所有补血药，都由此衍生而来。然而少火（生理之火）是生气的根源。丹田是出气的大海。补气而不补火是不对的。不明白少火能生气，而壮火（病理之火）会食气。例如中暑的人，四肢无力；湿热成痿证，不能举动的，都是火伤了气。人们知道补火可以益气，却不知道清火也可以益气，补益的效果相同，但寒热性质不同。又如血热的病证，宜用补血、行血的方法来清热；血寒的病证，宜用温经养血的方法来调和。薛立斋的治疗法则：血热而吐血者，称为阳乘阴，是热迫血妄行，治疗用四生丸、六味地黄汤；血寒而吐血者，称为阴乘阳，如同天寒地冻，水凝成冰，治疗用理中汤加当归。医生必须懂得这些，不要弄错。还有失血过多，达到升斗之多，不分寒热，都应当补益，所谓“血脱者益其气”，这是阳生阴长的至高真理。因为有形之血不能快速生成，无形之气应当紧急固护。以无形生有形，先天的造化，本来就是这样。这就是气血、寒热的区分。
然而又有补法却不识开合、不知缓急的情况，为什么呢？天地的道理，有合必有开，用药的机理，有补必有泻。如补中益气汤用人参，必用陈皮来开泄；六味地黄汤用熟地黄，即用泽泻来疏导。古人用药，补正气必兼泻邪气，邪气去除则补益自能得力。更何况虚证中夹杂邪气，正当打开一面，安抚民众，攻打贼寇，或放纵或擒拿，有收有放，这样才像贼退民安，国家根基坚固。更须斟酌邪正强弱的程度，而用药多少得当，才算合法。因此古方中，有补散并行的，如参苏饮、益气汤；有消补并行的，如枳术丸、理中丸；有攻补并行的，如泻心汤、硝石丸；有温补并行的，如治中汤、参附汤；有清补并行的，如参连饮、人参白虎汤。更有应当峻补的，有应当缓补的，有应当平补的。如极度虚弱的人，垂危的疾病，不用大剂量的汤液，不能挽回。我曾经用人参、附子煎膏，每天服用数两，而救治阳气微细将脱的证候。又曾用参麦煎膏，服用至数两，而救治津液将枯的证候。也有因无力服用人参，而以白术、茯苓等代替的。随时处置治疗，往往有效。至于病邪未尽，元气虽虚，不能承受重补，则从容和缓地补益，观察时机，循序渐进，脉症相安，逐渐减少药量，通过谷肉果菜进行食疗以使其完全康复。那些体质素来虚弱，没有大寒大热证候，想服用丸散以保养真元的人，则用平和的药物，调理气血，不敢妄用偏激的方剂，久而久之争胜，反而会有伤害。这就是开合、缓急的意义。
然而又有补法却不分五脏的情况，为什么呢？五脏有直接补益的方法，有相生而补益的方法。《难经》说：损伤肺的，补益其气；损伤心的，调和其营卫；损伤脾的，调节饮食，适应寒温；损伤肝的，缓和其中气；损伤肾的，补益其精：这就是正补。又如肺虚补脾，是土生金；脾虚补命门，是火生土；心虚补肝，是木生火；肝虚补肾，是水生木；肾虚补肺，是金生水：这就是相生而补。而我更有根本的说法。胚胎初现，形骸未成时，先生两肾，肾是先天之根本。落地一声啼哭，一事未知时，先求乳食，脾是后天之根本。然而在先天之中，有水有火，水叫真阴，火叫真阳。命名为“真”，则非气非血，而是气血的母亲。生身生命全赖于此。周敦颐说：无极之真，二五之精，妙合而凝，凝然不动，感而遂通，随吾神以为往来者，就是这个道理。古人深知此理，用六味地黄丸滋水，用八味地黄丸补火，用十补丸、斑龙丸，水火兼济，方法并非不好。然而以假补真，必须其真元未曾尽丧，才可能有效。如果先天祖气荡然无存，虽有灵芝，也难续命，何况普通草药呢！至于后天根本，尤其应当培养，不可忽视。经典说：能进食则昌盛，绝食则危险。又说：粥浆入胃，则虚者活。古人诊脉，必说胃气。制方则说补中，又说归脾、健脾，是有道理的。饮食入胃，分布五脏，灌溉周身，如同兵家的粮饷，民间的烟火，一旦接续不上，兵民就会离散。然而因饥饿致病的固然多，因饮食损伤致病的也不少。过嗜肥甘则生痰，过嗜醇酒则成饮积，瓜果乳酥，湿从内受，发为肿满泻利。五味偏嗜，久而增气，都会导致夭折灾殃。能不谨慎吗！因此知道脾肾两脏，皆为根本，不可偏废。古人有的说补脾不如补肾，是因为命门之火可生脾土；有的说补肾不如补脾，是因为饮食之精，自能下注于肾。须知脾弱而肾不虚者，则补脾为急；肾弱而脾不虚者，则补肾为先；若脾肾两虚，则同时补益。药既补益了，再加上摄养有方，这才是善道。谚语说：药补不如食补。我则说：食补不如精补，精补不如神补。节制饮食，爱惜精神，用药得当，病有不痊愈的很少。
Tonification refers to replenishing deficiency. The Classics state: "If one cannot treat deficiency, how can one attend to other conditions?" It also states: "Where pathogenic factors gather, Qi must be deficient." Furthermore: "Loss of essence and Qi results in deficiency." And: "Deficiency is treated with tonification." The significance of tonification is indeed profound! However, there are errors where tonification should have been applied but was not, harming the patient; where tonification was inappropriately applied, harming the patient; and where, although tonification was indicated, the practitioner failed to distinguish between Qi and Blood, did not differentiate Cold and Heat, ignored the principles of opening and closing, did not know the urgency or slowness of treatment, failed to distinguish among the Five Zang organs, did not clarify the root cause, and did not deeply seek proper regimens for regulation, thereby harming the patient. These matters require careful study.
What constitutes the error of "failing to tonify when indicated"? Deficiency is the gradual accumulation of damage; damage is the long-term aggregation of deficiency. Initially, it may go unnoticed, but over time, disease forms. If Yang deficiency is not tonified, Qi will gradually diminish. If Yin deficiency is not tonified, Blood will gradually be consumed. With both diminution and consumption, the innate True Qi and Ying-Wei (Nutritive and Defensive) Qi will gradually cease, and depletion will become established. Even if one wishes to tonify at this point, it will be too late. There are also cases of severe deficiency where internal substance is insufficient, yet externally there appears to be excess. The pulse is floating, large, and choppy; the face is red as if on fire; the body feels swollen and dizzy; there is irritability and restlessness. This indicates a mechanism for collapse due to excessive sweating. In more severe cases, spirit is scattered, and insomnia persists throughout the night; the danger is even more rapid. The treatment should employ formulas such as Yang Rong Tang (Nourish the Blood Decoction) or Gui Pi Tang (Restore the Spleen Decoction), adding astringent herbs to gather and secure the Yuan Shen (Original Spirit). This allows the scattered Qi to retreat and store itself within, offering a chance for rescue. In cases of Yin deficiency with hyperactive Fire, where Qi rebels upward causing insomnia, the treatment should nourish Kidney Water to control the Fire. One must strictly avoid bitter-cold purgative herbs that drain Fire, as they will injure True Qi. Misusing clearing herbs would distance the patient from recovery. As the ancients said, "Extreme deficiency presents with symptoms of excess; wrongly using purgation leads to unjust suffering." This illustrates the error of failing to tonify when indicated.
However, there are also errors of "tonifying when inappropriate." Why? Cases presenting with a full pulse and full syndrome, which cannot tolerate tonification, need no further discussion. Even if a person's constitution is inherently weak, if external pathogenic factors have just invaded and the disease momentum is strong, sudden tonification amounts to "locking the door and keeping the thief inside." Conversely, there are cases of extreme excess where accumulated heat resides internally, yet the pulse is fine and choppy, consciousness is clouded, and the body is fatigued. The patient may even shiver with aversion to cold, desiring extra clothing, closely mimicking a deficiency-cold pattern. However, such individuals invariably present with cracked lips, dry mouth, constipation, and dark urine—symptoms worlds apart from true deficiency. If these are not distinguished precisely, and tonifying agents are mistakenly administered, it is a grave error. As the ancients stated, "Extreme excess presents with symptoms of weakness; wrongly tonifying exacerbates the disease." This illustrates the error of tonifying when inappropriate.
There are also instances where tonification fails to distinguish between Qi and Blood, or Cold and Heat. The Classics state: "Qi provides warmth; Blood provides moisture." For tonifying Qi, Si Jun Zi Tang (Four Gentlemen Decoction) is used; all Qi-tonifying herbs derive from this principle. For tonifying Blood, Si Wu Tang (Four Substance Decoction) is used; all Blood-tonifying herbs derive from this principle. However, Shao Huo (Mild Fire, referring to physiological Fire) is the source of generating Qi. The Dantian is the sea of Qi emission. Tonifying Qi without addressing Fire is incorrect. One must understand that while Shao Huo generates Qi, Zhuang Huo (Excessive Fire, referring to pathological Fire) consumes Qi. For example, in heatstroke, limbs lack strength; in damp-heat leading to flaccidity syndromes where movement is impossible, Fire has injured Qi. People know that tonifying Fire can benefit Qi, but do not realize that clearing Fire can also benefit Qi. While the outcome of tonification is similar, the nature of Cold and Heat differs. For Blood-Heat syndromes, one should tonify and move Blood to clear Heat. For Blood-Cold syndromes, one should warm the channels and nourish Blood to harmonize. Xue Li-zhai’s therapeutic principles state: For hematemesis due to Blood-Heat, termed "Yang invading Yin," caused by Heat forcing Blood to move recklessly, treat with Si Sheng Wan (Four Generations Pill) or Liu Wei Di Huang Wan (Six-Ingredient Rehmannia Pill). For hematemesis due to Blood-Cold, termed "Yin invading Yang," akin to water freezing into ice on a cold day, treat with Li Zhong Tang (Regulate the Middle Decoction) plus Dang Gui (Angelica Sinensis). Physicians must recognize this to avoid errors. In cases of massive blood loss, regardless of Cold or Heat, tonification is necessary. This follows the principle: "In blood loss, tonify Qi," which reflects the supreme truth of "Yang generation leads to Yin growth." Formidable Blood cannot be generated quickly, whereas formless Qi must be urgently secured. Generating the tangible from the intangible follows the natural creation of Heaven and Earth. This distinguishes Qi from Blood, and Cold from Heat.
There are also cases where tonification ignores the principles of opening/closing and urgency/slowness. The principle of Heaven and Earth dictates that closure implies opening; the mechanism of herbal medicine dictates that tonification implies purging. For instance, Bu Zhong Yi Qi Tang uses Ren Shen (Ginseng) but must include Chen Pi (Tangerine Peel) to open and circulate; Liu Wei Di Huang Wan uses Shu Di Huang (Prepared Rehmannia) but includes Ze Xie (Alisma) to guide out turbidity. Ancients used herbs to tonify Zheng Qi (Upright Qi) while simultaneously draining Xie Qi (Pathogenic Qi); once pathogens are removed, tonification becomes effective. Moreover, in deficiency complicated by pathogens, one must open a pathway, pacify the people (healthy Qi), and attack the thieves (pathogens), employing strategies of release and capture, retention and discharge. This ensures the retreat of pathogens and peace of the people, strengthening the foundation of the state. One must weigh the strength of pathogens versus healthy Qi and adjust dosages accordingly. Thus, ancient formulas include combinations of tonification and dispersion, such as Shen Su Yin (Ginseng and Perilla Drink) and Yi Qi Tang (Benefit Qi Decoction); combinations of resolution and tonification, such as Zhi Zhu Wan (Immature Bitter Orange and Atractylodes Pill) and Li Zhong Wan; combinations of attack and tonification, such as Xie Xin Tang (Drain the Epigastrium Decoction) and Xiao Shi Wan; combinations of warming and tonification, such as Zhi Zhong Tang and Shen Fu Tang (Ginseng and Aconite Decoction); and combinations of clearing and tonification, such as Shen Lian Yin and Ren Shen Bai Hu Tang (Ginseng and White Tiger Decoction). Some cases require vigorous tonification, others slow tonification, and others mild tonification. For extremely weak patients in critical condition, large doses of decoctions are needed to reverse the decline. I have used concentrated pastes of Ren Shen and Fu Zi (Aconite) taken in large quantities daily to rescue cases of Yang collapse. I have also used pastes of Ren Shen and Mai Dong (Ophiopogon) to rescue cases of impending fluid exhaustion. Sometimes, due to inability to afford Ren Shen, Bai Zhu (Atractylodes Macrocephala) and Fu Ling (Poria) are substituted. Treatment adapted to circumstances often yields success. When pathogens remain and Yuan Qi is deficient but cannot tolerate heavy tonification, one should tonify gently and steadily, observing indications and proceeding step-by-step. As pulse and symptoms stabilize, reduce dosage gradually, and use dietary therapy with grains, meats, fruits, and vegetables to achieve full health. For those with inherent weakness but no extreme Cold or Heat, who wish to use pills and powders to preserve Yuan Yuan, use mild herbs to regulate Qi and Blood. Avoid eccentric formulas that compete aggressively, as prolonged use may cause harm. This explains the meaning of opening/closing and urgency/slowness.
There are also cases where tonification fails to distinguish among the Five Zang organs. Each Zang organ has a direct method of tonification and a method based on the generating cycle. The Nan Jing states: "For lung injury, benefit its Qi; for heart injury, harmonize Ying and Wei; for spleen injury, regulate diet and adapt to temperature; for liver injury, soothe its center; for kidney injury, benefit its Essence." This is direct tonification. Alternatively, tonify the Spleen for Lung deficiency (Earth generates Metal); tonify the Ming Men (Gate of Life) for Spleen deficiency (Fire generates Earth); tonify the Liver for Heart deficiency (Wood generates Fire); tonify the Kidneys for Liver deficiency (Water generates Wood); tonify the Lungs for Kidney deficiency (Metal generates Water). This is tonification via the generating cycle. I further propose the concept of "Roots." At conception, before form is complete, the two Kidneys develop first; the Kidneys are the root of Pre-Heaven (Innate) constitution. Upon birth, seeking milk and food comes first; the Spleen is the root of Post-Heaven (Acquired) constitution. Within the Pre-Heaven, there is Water and Fire. Water is called True Yin, and Fire is called True Yang. Named "True," they are neither Qi nor Blood, but the mothers of Qi and Blood. Life and bodily formation rely entirely on them. Zhou Dunyi stated: "The true essence of the Wuji, the essence of the Two Modes and Five Phases, combine wondrously and condense. Still and unmoving, yet responsive and communicating, following the spirit in its coming and going." The ancients understood this well. They used Liu Wei Di Huang Wan to nourish Water, Ba Wei Di Huang Wan (Eight-Ingredient Rehmannia Pill) to tonify Fire, and Shi Bu Wan (Ten-Tonifying Pill) or Ban Long Wan, balancing Water and Fire. Their methods were sound. However, using artificial means to supplement the True requires that the True essence not be completely lost for efficacy to occur. If the ancestral Qi of Pre-Heaven is utterly depleted, even Lingzhi (Reishi Mushroom) cannot prolong life, let alone common herbs. The Post-Heaven root, especially the Spleen, must be cultivated and cannot be neglected. The Classics state: "Abundance of grain signifies prosperity; absence of grain signifies peril." Also: "When gruel enters the Stomach, the deficient revive." Ancient physicians always spoke of "Stomach Qi" when taking pulses. Formulas are named "Bu Zhong" (Tonify the Middle) or "Gui Pi" (Return to the Spleen) and "Jian Pi" (Strengthen the Spleen) for good reason. Food entering the Stomach distributes to the Five Zang organs and irrigates the body, like military provisions or civilian hearth fires. If supply ceases, soldiers and civilians scatter. While many diseases arise from hunger, many also arise from dietary injury. Excessive consumption of rich, sweet foods generates Phlegm; excessive alcohol creates Fluid retention; fruits, dairy, and butter introduce Dampness internally, leading to edema, distension, and diarrhea. Prolonged preference for any of the Five Flavors increases specific Qi disproportionately, leading to premature death. How can one not be cautious? Thus, it is known that both the Spleen and Kidneys are roots and cannot be neglected. Some say tonifying the Spleen is inferior to tonifying the Kidneys because Ming Men Fire generates Spleen Earth; others say tonifying the Kidneys is inferior to tonifying the Spleen because essence from food naturally descends to the Kidneys. One must know: if the Spleen is weak but Kidneys are intact, prioritize tonifying the Spleen; if Kidneys are weak but Spleen is intact, prioritize tonifying the Kidneys; if both are weak, tonify both. After medicinal tonification, proper regimen and care are essential. As the proverb says: "Medicinal tonification is inferior to dietary tonification." I say: "Dietary tonification is inferior to Essence tonification; Essence tonification is inferior to Spirit tonification." Regulate diet, cherish Spirit, and apply medication appropriately; few illnesses will fail to heal.