7.子午少阴君火天, 阳明燥金应在泉. 丑未太阴太阳治, 寅申少阳
厥阴联. 卯酉却与子午倒, 辰戌已亥亦皆然. 每岁天泉四间气, 上下
分统各半年.
【注】天干起运, 地支起气. 此言地之阴阳, 正化、对化, 加临主气
,六位之客气也. 如子午之岁, 少阴君火治之, 起司天也. 阳明燥金
在下, 起在泉也. 气由下而升上, 故以在下之阳明起之, 阳明二阳,
二阳生三阳, 三阳太阳, 故太阳寒水为客初气, 即地之左间也. 三阳
,阳极生一阴, 一阴厥阴, 故厥阴为客二气, 即天之右间也. 一阴生
二阴, 二阴少阴, 故少阴为客三气, 即司天之气也. 二阴生三阴, 三
阴太阴, 故太阴为客四气, 即天之左间也. 三阴阴极生一阳, 一阳少
阳,故少阳为客五气, 即地之右间也. 一阳生二阳, 二阳阳明, 故阳
明为客六气, 即在泉之气也. 丑未寅申之岁, 皆仿此法起之. 卯酉却
与子午倒换, 辰戌却与丑未倒换, 巳亥却与寅申倒换. 谓卯酉之岁 ,
阳明燥金司天, 少阴君火在泉; 辰戌之岁, 太阳寒水司天, 太阴湿土
在泉; 巳亥之岁, 厥阴风木司天, 少阳相火在泉; 彼此倒换也. 每岁
司天在泉在泉左右四间气者, 即六气分统上下, 本年司天统主上半年
,在泉统主下半年之统气也 ( 图十 ).
7. 子年和午年，少阴君火（主管天时的火热之气）司天，阳明燥金（主管地气的燥凉之气）在泉。丑年和未年，太阴湿土与太阳寒水交替主持；寅年和申年，少阳相火与厥阴风木联合主持。卯年和酉年的情况却与子年和午年相反，辰年和戌年、巳年和亥年也都是这样。每年司天和在泉的左右四个间气，分别统管上半年和下半年。
【注】天干决定运气的起始，地支决定六气的起始。这里讲的是大地的阴阳变化，包括正化、对化，以及加临的主气和六位的客气。例如子年和午年，由少阴君火主持，位于司天的位置。阳明燥金位于下方，处于在泉的位置。气从下方向上升腾，所以以下方的阳明开始推算。阳明属于二阳，二阳生出三阳，三阳即太阳，所以太阳寒水是客初气，也就是大地左侧的间气。三阳极盛而生出一阴，一阴即厥阴，所以厥阴是客二气，也就是天空右侧的间气。一阴生出二阴，二阴即少阴，所以少阴是客三气，也就是司天的主气。二阴生出三阴，三阴即太阴，所以太阴是客四气，也就是天空左侧的间气。三阴极盛而再生出一阳，一阳即少阳，所以少阳是客五气，也就是大地右侧的间气。一阳生出二阳，二阳即阳明，所以阳明是客六气，也就是在泉的主气。丑年、未年、寅年、申年的推演都仿照这种方法。卯年和酉年却与子年和午年颠倒互换，辰年和戌年却与丑年和未年颠倒互换，巳年和亥年却与寅年和申年颠倒互换。意思是：卯年和酉年，阳明燥金司天，少阴君火在泉；辰年和戌年，太阳寒水司天，太阴湿土在泉；巳年和亥年，厥阴风木司天，少阳相火在泉；这是彼此颠倒互换的关系。每年司天和在泉及其左右四个间气，就是六气分统上下，本年司天统管上半年，在泉统管下半年的主气（见图十）。
7. In the Zi and Wu years, Shaoyin Junhuo (Ministerial Fire ruling Heaven) governs the upper position (Si Tian), while Yangming Zaojin (Dry Metal ruling Earth) governs the lower position (Zai Quan). In the Chou and Wei years, Taiyin Shitu (Damp Earth) and Taiyang Hanshui (Cold Water) alternate in charge; in the Yin and Shen years, Shaoyang Xianghuo (Ministerial Fire) and Jueyin Fengmu (Wind Wood) are jointly in charge. The situation in Mao and You years is reversed compared to Zi and Wu years, and this pattern also applies to Chen-Xu and Si-Hai years. Each year, the four interstitial Qi positions of Si Tian (Heavenly Ruler) and Zai Quan (Earthly Ruler) respectively dominate the first half and the second half of the year.
[Note] Heavenly Stems initiate Yun (Five Movements), and Earthly Branches initiate Qi (Six Qi). This passage discusses the Yin-Yang of the Earth, including Zhenghua (Direct Transformation) and Duihua (Opposite Transformation), as well as the added Zhuqi (Principal Qi) and Keqi (Adventitious Qi) of the six positions. For instance, in Zi and Wu years, Shaoyin Junhuo presides, occupying the Si Tian position. Yangming Zaojin is below, occupying the Zai Quan position. Qi ascends from below to above; therefore, calculation begins with Yangming below. Yangming belongs to Er Yang (Two Yangs); Er Yang generates San Yang (Three Yangs), and San Yang is Taiyang. Thus, Taiyang Hanshui is the First Adventitious Qi, which corresponds to the Left Interstitial Qi of the Earth. When San Yang reaches its extreme, it generates Yi Yin (One Yin), which is Jueyin. Thus, Jueyin is the Second Adventitious Qi, corresponding to the Right Interstitial Qi of Heaven. Yi Yin generates Er Yin (Two Yins), which is Shaoyin. Thus, Shaoyin is the Third Adventitious Qi, which is the Si Tian Qi. Er Yin generates San Yin (Three Yins), which is Taiyin. Thus, Taiyin is the Fourth Adventitious Qi, corresponding to the Left Interstitial Qi of Heaven. When San Yin reaches its extreme, it generates Yi Yang (One Yang), which is Shaoyang. Thus, Shaoyang is the Fifth Adventitious Qi, corresponding to the Right Interstitial Qi of the Earth. Yi Yang generates Er Yang, which is Yangming. Thus, Yangming is the Sixth Adventitious Qi, which is the Zai Quan Qi. The years of Chou, Wei, Yin, and Shen follow this method of calculation. However, Mao and You years are reversed relative to Zi and Wu years; Chen and Xu years are reversed relative to Chou and Wei years; Si and Hai years are reversed relative to Yin and Shen years. This means: in Mao and You years, Yangming Zaojin rules Si Tian and Shaoyin Junhuo rules Zai Quan; in Chen and Xu years, Taiyang Hanshui rules Si Tian and Taiyin Shitu rules Zai Quan; in Si and Hai years, Jueyin Fengmu rules Si Tian and Shaoyang Xianghuo rules Zai Quan; these are mutual reversals. The Si Tian, Zai Quan, and their four interstitial Qi positions each year represent the Six Qi dividing and dominating the upper and lower halves; the current year's Si Tian dominates the first half, and Zai Quan dominates the second half (Figure 10).