寅，故正化于寅，对化于申也。阳明司卯酉者何？阳明为金，酉为金之正位，故正化于酉，对化于卯也。太阳
司辰戌者何？太阳为水，子为君火之对化，避而不居，辰戌属土，水伏土中，因随土用，故正化于戌，对化于
辰也。厥阴司巳亥者何？厥阴木也，木生在亥，虽卯为正位，缘为金之对化。故正化于亥，对化于巳也。
流年起六气歌
当年所属是司天，退后三辰系在泉。司天左右为间气，在泉左右间亦然。地前一位为初气，二气行交
在亥边，三气合天终应地，加临主客细排连。
假如子午年，少阴君火司天。退三位至酉上，即阳明燥金在泉。子左为丑，是太阴湿土，为司天左间
气也。子右为亥，是厥阴风木，为右间气也。在泉酉左为戌，是太阳寒水，为在泉左间气也。酉右为申，是少
阳相火，为右间气也。顺数为左递数为右。以在泉酉前一位，戌为初气，即为寒水，二气亥，三气合天气子君
火，四气丑，五气寅，终气卯。各以前歌推之，即知所属之气。此为客气。每岁以旧年大寒日起初气，再加风、
火、暑、湿、燥、寒六主气，以风木接前初气，太阳寒水加于厥阴风木；春分日二气交亥，厥阴风木加于少阴
君火小；满日三气交子，少阴君火加于太阴湿土；大暑日四气交丑，太阴湿土加于少阳相火，秋分日
五气交寅，少阳相火加于阳明燥金；小雪日六气交卯，阳明燥金加于太阳寒水。仍归来年大寒日起初气。此为
六气加交法。
客气交日歌
大寒日起初之气，行至春分二气交，小满始交三气定，大暑交四不相饶，秋分五气方交起，六交小雪立为
条。每气各主六十日，加临主客察秋毫。
逐年主气歌
初气逐年木主先，二君三相火排连，四来是土常为主，五气金生六水全。
逐年客气歌
司天退二是客乡，顺数从天至地方，三气合天终应地，主客兴衰定弱强。
夫一岁之内，主气定于六经，客气随行于四时。主气者风为初气，火为二气，暑为三气，湿为四气，燥为
五气，寒为终气。此气万年为主。客气者，每一气各主六十日八十七刻半有奇。申子辰年，大寒寅初一刻交初
气，春分子末交二气，小满亥末交三气，大暑戌末交四气，秋分酉末交五气，小雪申末交终气。巳酉丑年，大
寒巳初一刻交初气，春分卯末交二气，小满寅末交三气，大暑丑末交四气，秋分子末交五气，小雪亥末交终气。
寅午戌年，大寒申初一刻交初气，春分午末交二气，小满巳末交三气，大暑辰末交四气，秋分卯末交五气，小
雪寅末交终气。亥卯未年，大寒亥初一刻交初气，春分酉末交二气，小满申末交三气，大暑末交四气，秋分午
末交五气，小雪巳末交终气。盖因客气加于主气之上，主气临于客气之下，天时不齐，民病所由生也。（余午亭）
凡治病不明岁气盛衰、人气虚实，而释邪攻正，实实虚虚，医之罪也。○凡治病而逆四时生、长、化、收、
藏之气，所谓违天者不祥，医之罪也。（《医门法律》）
主运图
每运各主七十三日零五刻。总五运之数，则三百六十五日二十五刻，共成一岁。谓之主者，年年相同。
甲、丙、戊、庚、壬，阳年起太角；乙、丁、己、辛、癸，阴年起少角。盖主运皆以木为初运，相生为序，以
次而推。
\r主运图\ps62a1.bmp\r
客运图
南政者，司天之气。居北极之上而面南，以东北为左间，西北为右间。以土居中位，有君象。
客运者，亦以相生为序。如甲己年以土运为初；土生金，则金为二运，以次而推。
北政者，司天之气。居南极之上而面北，以西南为左间，东南为右间，以余四傍列，有臣象。
\r客运图\ps62a2.bmp\r
主气图
万载不移，
故谓之主，
逐年迁变，
故谓之客。
\r主气图\ps62a3.bmp\r
客气图
客气法，子年从戌上起初气，顺数至亥为二气，逢三气便是司天，至第六卯上为在泉，次年则退一位而
推，如丑年，则从亥上起初气；寅年则从子上起初气。其司天者，即本年岁支。如子年是子司天，丑年是丑司
天，余仿此。间气之法，以司天为主。如子为司天，则顺数至丑为司天左间气，逆数至亥为司天右间气；又卯
为在泉，亦顺数至辰为在泉左间气，逆数至寅为在泉右间气。各随其风、火、暑、湿、燥、寒之化，占候也。
\r客气图\ps62a4.bmp\r
司天在泉指掌图
\r司天在泉指掌图\ps62a5.bmp\r
六气以厥阴为一阴，少阴为二阴，太阴为三阴，少阳为一阳，阳明为二阳，太阳为三阳。故但记厥、
少、太、少、阳、太六字，则六气尽矣。厥、少、太为三阴，少、阳、太为三阳也。○其法以巳亥为始，即起厥
阴司天，故于巳亥位起厥字，子午位为少字，丑未位为太字，顺数到底，皆其年分之司天也。其余五气循次可推矣。
寅年，所以正化在寅，对化在申。为什么阳明燥金司管卯酉年？因为阳明属金，酉是金的正位，所以正化在酉，对化在卯。太阳寒水司管辰戌年是怎么回事？太阳属水，子水是君火的对化之位，（因避讳）不居于此，辰和戌属土，水潜伏在土中，因此随土的作用而用事，所以正化在戌，对化在辰。厥阴风木司管巳亥年是怎么回事？厥阴属木，木长生在亥，虽然卯是木的正位，但因为卯是金的对化之位（金克木），所以正化在亥，对化在巳。
《流年起六气歌》
当年所属的司天之气，退后三个地支的位置就是在泉之气。司天左右的为间气，在泉左右的间气也是如此。地前一位为初气，二气运行交接在亥边，三气合于天气终了应合于地气，加临的主气和客气要仔细排列连接。
假如是子午年，少阴君火司天。退三位至酉上，即阳明燥金在泉。子的左边是丑，是太阴湿土，为司天左间气。子的右边是亥，是厥阴风木，为右间气。在泉的酉左边是戌，是太阳寒水，为在泉左间气。酉的右边是申，是少阳相火，为右间气。顺数向左递推，逆数向右递推。以在泉的酉前一位，戌为初气，即为寒水；二气在亥；三气合天气的子君火；四气在丑；五气在寅；终气在卯。各以前面的歌诀推之，就知道所属的气。这是客气。每年从旧年的大寒日起算初气，再加风、火、暑、湿、燥、寒六主气，以风木接在前初气之后，太阳寒水加于厥阴风木之上；春分日二气交接在亥，厥阴风木加于少阴君火之上；小满日三气交接在子，少阴君火加于太阴湿土之上；大暑日四气交接在丑，太阴湿土加于少阳相火之上；秋分日五气交接在寅，少阳相火加于阳明燥金之上；小雪日六气交接在卯，阳明燥金加于太阳寒水之上。仍归来年大寒日起初气。这叫六气加交法。
《客气交日歌》
大寒日起初之气，行至春分二气交接，小满始交三气定，大暑交四不相饶，秋分五气方交起，六气交接在小雪立为条理。每气各主六十日，加临主客要观察细微之处。
《逐年主气歌》
初气逐年由木主导开始，二气三气由君火相火排列连接，四气来的是土常为主，五气金生六气水全。
《逐年客气歌》
司天退两位是客气的方向，顺数从天空到地面，三气合于天终应合于地，主客的兴衰决定强弱。
在一岁之内，主气定于六经，客气随行于四时。主气方面，风为初气，火为二气，暑为三气，湿为四气，燥为五气，寒为终气。这种气万年不变为主。客气方面，每一气各主六十日八十七刻半有余。申子辰年，大寒寅初一刻交初气，春分子末交二气，小满亥末交三气，大暑戌末交四气，秋分酉末交五气，小雪申末交终气。巳酉丑年，大寒巳初一刻交初气，春分卯末交二气，小满寅末交三气，大暑丑末交四气，秋分子末交五气，小雪亥末交终气。寅午戌年，大寒申初一刻交初气，春分午末交二气，小满巳末交三气，大暑辰末交四气，秋分卯末交五气，小雪寅末交终气。亥卯未年，大寒亥初一刻交初气，春分酉末交二气，小满申末交三气，大暑末交四气，秋分午末交五气，小雪巳末交终气。大概是因为客气加于主气之上，主气临于客气之下，天时不齐，百姓生病由此产生。（余午亭）
凡是治病不明白岁气盛衰、人气虚实，而释放邪气攻击正气，导致实者更实虚者更虚，是医生的罪过。○凡是治病而违背四时生、长、化、收、藏之气，所谓违背天道是不吉祥的，是医生的罪过。（《医门法律》）
主运图
每运各主七十三日零五刻。总五运之数，则三百六十五日二十五刻，共成一岁。称为“主”的原因，是年年相同。
甲、丙、戊、庚、壬，阳年起太角；乙、丁、己、辛、癸，阴年起少角。主运都以木为初运，相生为序，依次推演。
客运图
南政者，指司天之气。居于北极之上而面南，以东北为左间，西北为右间。以土居中位，有君主之象。
客运者，也以相生为序。如甲己年以土运为初运；土生金，则金为二运，依次推演。
北政者，指司天之气。居于南极之上而面北，以西南为左间，东南为右间，其余四方排列，有臣子之象。
主气图
万载不移，故称为主，逐年迁变，故称为客。
客气图
客气法，子年从戌上起初气，顺数至亥为二气，逢三气便是司天，至第六卯上为在泉，次年则退一位而推，如丑年，则从亥上起初气；寅年则从子上起初气。其司天者，即本年岁支。如子年是子司天，丑年是丑司天，其余仿此。间气之法，以司天为主。如子为司天，则顺数至丑为司天左间气，逆数至亥为司天右间气；又卯为在泉，亦顺数至辰为在泉左间气，逆数至寅为在泉右间气。各随其风、火、暑、湿、燥、寒的变化，进行占候。
六气以厥阴为一阴，少阴为二阴，太阴为三阴，少阳为一阳，阳明为二阳，太阳为三阳。所以只要记住厥、少、太、少、阳、太六个字，六气就全部涵盖了。厥、少、太为三阴，少、阳、太为三阳。○其方法是以巳亥为始，即起厥阴司天，所以在巳亥位起厥字，子午位为少字，丑未位为太字，顺数到底，都是该年分配的司天之气。其余五气循次可推矣。
Yin (Tiger) year, therefore the primary transformation occurs at Yin, and the opposite transformation occurs at Shen. Why does Yangming Dryness Metal govern Mao and You years? Because Yangming belongs to Metal, and You is the correct position of Metal; thus, the primary transformation is at You, and the opposite transformation is at Mao. What about Taiyang Cold Water governing Chen and Xu years? Taiyang belongs to Water. Zi Water is the opposite transformation position of Jun Fire (Ministerial Fire), so it avoids occupying this position. Chen and Xu belong to Earth; Water hides within Earth and therefore follows the function of Earth. Thus, the primary transformation is at Xu, and the opposite transformation is at Chen. What about Jueyin Wind Wood governing Si and Hai years? Jueyin belongs to Wood. Wood is born (longs) at Hai. Although Mao is the correct position for Wood, because Mao is the opposite transformation position of Metal (which overcomes Wood), the primary transformation is at Hai, and the opposite transformation is at Si.
Song on Starting the Six Qi from the Flowing Year
The Tianqi (Heavenly Qi) belonging to the current year determines the Quanqi (Earthly Qi) three branches behind it. The qi adjacent left and right of Tianqi are the Intermittent Qi (Jianqi); similarly, the qi adjacent left and right of Quanqi are also Intermittent Qi. The position preceding the Earth branch is the First Qi. The Second Qi transitions near Hai. The Third Qi completes the Heavenly phase and corresponds to the Earthly phase. The added Main Qi and Guest Qi must be carefully arranged and connected.
For example, in a Zi-Wu year, Shaoyin Jun Fire (Ministerial Fire) is Tianqi. Retreating three positions leads to You, where Yangming Dryness Metal is Quanqi. To the left of Zi is Chou, which is Taiyin Damp Earth, serving as the Left Intermittent Qi of Tianqi. To the right of Zi is Hai, which is Jueyin Wind Wood, serving as the Right Intermittent Qi. To the left of Quanqi's You is Xu, which is Taiyang Cold Water, serving as the Left Intermittent Qi of Quanqi. To the right of You is Shen, which is Shaoyang Xiang Fire (Apostle Fire), serving as the Right Intermittent Qi. Counting clockwise indicates the left sequence, while counter-clockwise indicates the right sequence. Taking the position preceding Quanqi's You, Xu serves as the First Qi, which is Cold Water; the Second Qi is at Hai; the Third Qi combines with the Heavenly Qi at Zi (Jun Fire); the Fourth Qi is at Chou; the Fifth Qi is at Yin; and the Final Qi is at Mao. Applying the previous song allows one to deduce the corresponding Qi. This refers to Guest Qi (Ke Qi). Each year begins the First Qi from the Great Cold (Da Han) solar term of the previous year, adding the six Main Qi: Wind, Fire, Summer Heat, Dampness, Dryness, and Cold. Wind Wood connects after the previous First Qi, with Taiyang Cold Water added upon Jueyin Wind Wood. At the Spring Equinox, the Second Qi transitions at Hai, with Jueyin Wind Wood added upon Shaoyin Jun Fire. At Xiaoman (Grain Buds), the Third Qi transitions at Zi, with Shaoyin Jun Fire added upon Taiyin Damp Earth. At Dashu (Great Heat), the Fourth Qi transitions at Chou, with Taiyin Damp Earth added upon Shaoyang Xiang Fire. At the Autumn Equinox, the Fifth Qi transitions at Yin, with Shaoyang Xiang Fire added upon Yangming Dryness Metal. At Xiaoxue (Minor Snow), the Sixth Qi transitions at Mao, with Yangming Dryness Metal added upon Taiyang Cold Water. It then returns to start the First Qi from the Great Cold of the following year. This is the method of Qi addition and transition.
Song on Guest Qi Transition Days
First Qi begins at Great Cold; Second Qi transitions at Spring Equinox; Third Qi settles starting at Xiaoman; Fourth Qi transitions at Great Heat without delay; Fifth Qi begins at Autumn Equinox; Sixth Qi establishes its rule at Minor Snow. Each Qi governs for sixty days. One must observe the subtle details of the added Main and Guest Qi.
Song on Annual Main Qi
The First Qi of each year begins with Wood; the Second and Third Qi are linked by Ministerial and Apostle Fire; the Fourth Qi is Earth, often dominant; the Fifth Qi generates Metal, and the Sixth Qi completes Water.
Song on Annual Guest Qi
Retreat two positions from Tianqi to find the direction of Guest Qi. Count forward from Heaven to Earth. The Third Qi combines with Heaven and concludes corresponding to Earth. The rise and fall of Main and Guest Qi determine weakness and strength.
Within a year, Main Qi is fixed according to the Six Meridians, while Guest Qi follows the four seasons. Regarding Main Qi: Wind is the First Qi, Fire is the Second, Summer Heat is the Third, Dampness is the Fourth, Dryness is the Fifth, and Cold is the Final Qi. This Qi remains constant as "Main" for ten thousand years. Regarding Guest Qi: Each Qi governs for sixty days and approximately 87.5 ke (time units). In Shen-Zi-Chen years, First Qi begins at the first ke of Yin during Great Cold; Second Qi ends at the last ke of Zi during Spring Equinox; Third Qi ends at the last ke of Hai during Xiaoman; Fourth Qi ends at the last ke of Xu during Great Heat; Fifth Qi ends at the last ke of You during Autumn Equinox; Final Qi ends at the last ke of Shen during Minor Snow. In Si-You-Chou years, First Qi begins at the first ke of Si during Great Cold; Second Qi ends at the last ke of Mao during Spring Equinox; Third Qi ends at the last ke of Yin during Xiaoman; Fourth Qi ends at the last ke of Chou during Great Heat; Fifth Qi ends at the last ke of Zi during Autumn Equinox; Final Qi ends at the last ke of Hai during Minor Snow. In Yin-Wu-Xu years, First Qi begins at the first ke of Shen during Great Cold; Second Qi ends at the last ke of Wu during Spring Equinox; Third Qi ends at the last ke of Si during Xiaoman; Fourth Qi ends at the last ke of Chen during Great Heat; Fifth Qi ends at the last ke of Mao during Autumn Equinox; Final Qi ends at the last ke of Yin during Minor Snow. In Hai-Mao-Wei years, First Qi begins at the first ke of Hai during Great Cold; Second Qi ends at the last ke of You during Spring Equinox; Third Qi ends at the last ke of Shen during Xiaoman; Fourth Qi ends at the last ke of Wei during Great Heat; Fifth Qi ends at the last ke of Wu during Autumn Equinox; Final Qi ends at the last ke of Si during Minor Snow. Generally, because Guest Qi is added above Main Qi, and Main Qi lies below Guest Qi, the irregularity of heavenly timing causes illnesses among the people. (Yu Wuting)
Any physician who treats disease without understanding the prosperity and decline of annual Qi and the deficiency and excess of human Qi, thereby releasing pathogenic factors to attack healthy Qi, resulting in reinforcing the excess and depleting the deficient, commits a medical error. ○ Any physician who treats disease against the Qi of generation, growth, transformation,收 (harvest), and storage of the four seasons, violating Heaven, brings misfortune; this is a medical error. (from *Medical Gate Laws*)
Chart of Main Transport (Zhu Yun)
Each transport governs for seventy-three days and five ke. The total number of the Five Transports amounts to three hundred sixty-five days and twenty-five ke, completing one year. It is called "Main" because it remains the same every year.
Yang years (Jia, Bing, Wu, Geng, Ren) begin with Taijue (Greater Jue); Yin years (Yi, Ding, Ji, Xin, Gui) begin with Shaojue (Lesser Jue). Main Transport always starts with Wood as the First Transport, following the order of mutual generation for deduction.
[Image: Main Transport Chart]
Chart of Guest Transport (Ke Yun)
In Southern Administration (Nan Zheng), the Tianqi resides above the North Pole, facing South, with Northeast as the Left Intermittent and Northwest as the Right Intermittent. Earth occupies the central position, symbolizing the Sovereign.
Guest Transport also follows the order of mutual generation. For example, in Jia-Ji years, Earth Transport is the First; since Earth generates Metal, Metal is the Second Transport, and so on.
In Northern Administration (Bei Zheng), the Tianqi resides above the South Pole, facing North, with Southwest as the Left Intermittent and Southeast as the Right Intermittent. The remaining four directions are arranged around, symbolizing the Ministers.
[Image: Guest Transport Chart]
Chart of Main Qi (Zhu Qi)
Unchanging for ten thousand ages, hence called "Main."
Changing yearly, hence called "Guest."
[Image: Main Qi Chart]
Chart of Guest Qi (Ke Qi)
The method for Guest Qi: In Zi years, start First Qi from Xu, count forward to Hai for Second Qi; the third position is Tianqi; the sixth position, Mao, is Quanqi. The following year retreats one position for deduction. For example, in Chou years, start First Qi from Hai; in Yin years, start First Qi from Zi. The Tianqi corresponds to the Earthly Branch of that year. For instance, in Zi years, Zi is Tianqi; in Chou years, Chou is Tianqi, and so forth. The method for Intermittent Qi takes Tianqi as the reference. If Zi is Tianqi, counting forward to Chou gives the Left Intermittent Qi of Tianqi; counting backward to Hai gives the Right Intermittent Qi of Tianqi. Similarly, if Mao is Quanqi, counting forward to Chen gives the Left Intermittent Qi of Quanqi; counting backward to Yin gives the Right Intermittent Qi of Quanqi. One observes and predicts based on their transformations of Wind, Fire, Summer Heat, Dampness, Dryness, and Cold.
[Image: Guest Qi Chart]
Palm Guide to Tianqi and Quanqi
[Image: Palm Guide to Tianqi and Quanqi]
The Six Qi are classified as follows: Jueyin is First Yin, Shaoyin is Second Yin, Taiyin is Third Yin; Shaoyang is First Yang, Yangming is Second Yang, Taiyang is Third Yang. Thus, remembering only the characters Jue, Shao, Tai, Shao, Yang, Tai covers all Six Qi. Jue, Shao, Tai constitute the Three Yins; Shao, Yang, Tai constitute the Three Yangs. ○ The method starts with Si-Hai, initiating Jueyin Tianqi. Therefore, the character 'Jue' is placed at Si-Hai positions, 'Shao' at Zi-Wu positions, and 'Tai' at Chou-Wei positions. Counting forward to the end yields the Tianqi allocated for that year. The remaining five Qi can be deduced in sequence.