运过胜己畏齐化，不及乘衰胜己兼。太过被克不及助，皆为正化是平年。气寅午未
酉戌亥。正司化令有余看。子丑卯辰巳申岁。对司化令不足言。
【注】五运之中运，统主一年之运也。中运太过则旺，胜己者则畏其盛，反齐其化矣。
如太宫土运，反齐木化；太角木运，反齐金化；太商金运，反齐火化；太微火运，反齐
水化；太羽水运，反齐土化也。即经所谓畏其旺，反同其化，薄其所不胜也。中运不及
则弱，胜己者，则乘其衰，来兼其化矣。如少宫土运，木来兼化；少角木运，金来兼化；
少商金运，火来兼化；少征火运，水来兼化；少羽水运，土来兼化，即经所谓乘其弱，来
同其化，所不胜薄之也。中运戊辰阳年，火运太过，遇寒水司天，则为太过被制；中运
乙卯阴年，金运不及。遇燥金司天，则为同气；中运辛卯阴年，水运不及，则为相生；俱
为不及得助。凡遇此类，皆为正化平和之年也。
气者，六气之客气，统一岁之司化之气也。如厥阴司巳亥，以厥阴属木，木生于亥，
故正化于亥，对化于巳也。少阴司子午，以少阴为君火，当正南离位，故正化于午，对
化于子也。太阴司丑未，以太阴属土居中，旺于西南未宫，故正化于未，对化于丑也。少
阳司寅申，以少阳属相火，位卑于君火，火生于寅，故正化于寅，对化于申也。阳明司
卯酉，以阳明属金，酉为西方金位，故正化于酉，对化于卯也。太阳司辰戌，以太阳为
水，辰戌属土，然水行土中，而戌居西北，属水渐王之乡，是以《洪范》五行，以戌属水，
故正化于戌，对化于辰也。是以寅、午、未、酉、戌、亥为正化。正化者，令之实，主有
余也。子、丑、卯、辰、巳、申为对化。对化者，令之虚，主不足也。
\r五运齐化兼化图\ps110-4a14.bmp\r
\r六气正化对化图\ps110-4a15.bmp\r
五运中，太过之运克制胜己者而呈现“齐化”，不及之运被胜己者所乘而呈现“兼化”。太过之运若被克制，或不及之运得到帮助，都属于正化，是平和之年。六气中，寅、午、未、酉、戌、亥年为正化司天，表示气化有余；子、丑、卯、辰、巳、申年为对化司天，表示气化不足。
【注】五运中的中运，统管一年的运气。中运太过则旺盛，胜己（克我）的五行畏惧其盛势，反而顺从其气化。例如太宫土运，反而顺从木的气化；太角木运，反而顺从金的气化；太商金运，反而顺从火的气化；太微火运，反而顺从水的气化；太羽水运，反而顺从土的气化。这就是《内经》所说的畏惧其旺势，反而同于其气化，这是薄待其所不胜（即克我者）。中运不及则虚弱，胜己者便乘其衰弱而来兼并其气化。例如少宫土运，木来兼化；少角木运，金来兼化；少商金运，火来兼化；少征火运，水来兼化；少羽水运，土来兼化。这就是《内经》所说的乘其虚弱，来同于其气化，这是所不胜（克我者）来侵薄它。中运戊辰阳年，火运太过，遇到寒水司天，则为太过被制约；中运乙卯阴年，金运不及，遇到燥金司天，则为同气相助；中运辛卯阴年，水运不及，则为相生相助；都属于不及而得到帮助。凡是遇到这类情况，都是正化平和之年。
气，指六气的客气，统一年的司化之气。例如厥阴风木司天在巳亥年，因为厥阴属木，木生于亥，所以正化在亥，对化在巳。少阴君火司天在子午年，因为少阴为君火，正当南方离位，所以正化在午，对化在子。太阴湿土司天在丑未年，因为太阴属土居中，旺于西南未宫，所以正化在未，对化在丑。少阳相火司天在寅申年，因为少阳属相火，地位低于君火，火生于寅，所以正化在寅，对化在申。阳明燥金司天在卯酉年，因为阳明属金，酉为西方金位，所以正化在酉，对化在卯。太阳寒水司天在辰戌年，因为太阳为水，辰戌属土，但水行于土中，且戌居西北，属于水渐旺之乡，是以《洪范》五行中，以戌属水，所以正化在戌，对化在辰。因此，寅、午、未、酉、戌、亥为正化。正化，代表令之实，主气有余。子、丑、卯、辰、巳、申为对化。对化，代表令之虚，主气不足。
In the Five Movements (Wu Yun), when a movement is excessive, it suppresses the element that overcomes it, resulting in "Qi Hua" (alignment transformation); when a movement is deficient, the element that overcomes it takes advantage of its weakness, resulting in "Jian Hua" (concurrent transformation). If an excessive movement is controlled by another factor, or if a deficient movement receives assistance, these are considered "Zheng Hua" (regular transformation) and indicate a balanced year. Among the Six Qi (Liu Qi), the years of Yin, Wu, Wei, You, Xu, and Hai correspond to Zheng Hua (regular ruling), indicating surplus qi; the years of Zi, Chou, Mao, Chen, Si, and Shen correspond to Dui Hua (counter ruling), indicating deficient qi.
[Annotation] The Central Movement (Zhong Yun) of the Five Movements governs the qi of the entire year. When the Central Movement is excessive, it is vigorous; the element that overcomes it fears its strength and instead aligns with its transformation. For example, in Tai Gong Earth Movement, it aligns with Wood's transformation; in Tai Jiao Wood Movement, it aligns with Metal's transformation; in Tai Shang Metal Movement, it aligns with Fire's transformation; in Tai Wei Fire Movement, it aligns with Water's transformation; in Tai Yu Water Movement, it aligns with Earth's transformation. This corresponds to the classic saying: fearing its vigor, it follows the same transformation, thereby thinning (weakening) what it does not overcome (i.e., the overcoming element). When the Central Movement is deficient, it is weak; the element that overcomes it takes advantage of its decline to assume its transformation. For example, in Shao Gong Earth Movement, Wood assumes the transformation; in Shao Jiao Wood Movement, Metal assumes the transformation; in Shao Shang Metal Movement, Fire assumes the transformation; in Shao Zheng Fire Movement, Water assumes the transformation; in Shao Yu Water Movement, Earth assumes the transformation. This corresponds to the classic saying: taking advantage of its weakness, it follows the same transformation, as the overcoming element thins it. In the Yang year of Wu Chen, Fire Movement is excessive; encountering Cold Water ruling from above (Si Tian), it is excessive but controlled. In the Yin year of Yi Mao, Metal Movement is deficient; encountering Dry Metal ruling from above, it shares the same qi. In the Yin year of Xin Mao, Water Movement is deficient; it receives assistance through mutual generation. All such cases represent deficiency receiving assistance. Whenever such situations occur, they are considered regular and balanced years.
The term "Qi" refers to the Guest Qi (Ke Qi) of the Six Qi, which governs the ruling qi of the year. For instance, Jue Yin Wind Wood rules in Si and Hai years. Since Jue Yin belongs to Wood, and Wood is born in Hai, the regular transformation (Zheng Hua) occurs in Hai, and the counter transformation (Dui Hua) occurs in Si. Shao Yin Ministerial Fire rules in Zi and Wu years. Since Shao Yin is Ministerial Fire, corresponding to the South Li position, the regular transformation occurs in Wu, and the counter transformation occurs in Zi. Tai Yin Damp Earth rules in Chou and Wei years. Since Tai Yin belongs to Earth, centered and prosperous in the Southwest Wei palace, the regular transformation occurs in Wei, and the counter transformation occurs in Chou. Shao Yang Ministerial Fire rules in Yin and Shen years. Since Shao Yang is Ministerial Fire, subordinate to Ministerial Fire (Note: text implies subordinate to Sovereign Fire contextually or distinct status), and Fire is born in Yin, the regular transformation occurs in Yin, and the counter transformation occurs in Shen. Yang Ming Dry Metal rules in Mao and You years. Since Yang Ming belongs to Metal, and You is the Western Metal position, the regular transformation occurs in You, and the counter transformation occurs in Mao. Tai Yang Cold Water rules in Chen and Xu years. Since Tai Yang is Water, and Chen/Xu belong to Earth, yet Water moves within Earth, and Xu is located in the Northwest, a region where Water gradually prospers, according to the Five Elements in *Hong Fan*, Xu is associated with Water. Thus, the regular transformation occurs in Xu, and the counter transformation occurs in Chen. Therefore, Yin, Wu, Wei, You, Xu, and Hai are Zheng Hua. Zheng Hua represents the reality of the command, indicating surplus. Zi, Chou, Mao, Chen, Si, and Shen are Dui Hua. Dui Hua represents the emptiness of the command, indicating deficiency.