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运气与在泉合其气化，阳年曰同天符，阴年曰同岁会。故六十年中，太乙天符四年，天符十
二年，岁会八年，同天符六年，同岁会六年。五者离而言之共三十六年，合而言之止有二十七年。
经言二十四岁者，不言岁会也。变行有多少，病形有微甚，生死有早晏，按经推步，诚可知也。
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天符太乙天符岁会同天符同岁会总歌
司天与运及年支，三位相参太乙符。
运合年支名岁会，土辰四正必同途。
在泉合运阴同岁，阳则同天符可呼。
惟有天符何意取，司天合运是其区。
符，合也。太乙，尊之之号。惟辰戌丑未寄位于子午卯酉四正位主岁会者，余不当止中之
合故耳。邪之中人，太乙暴而死，岁会徐而持，天符速而危。
无论无图，读其歌便谙其义，故录于此。
不及年月干符同，未逢行胜气亦平。
行胜己后行复毕，本气即得正德位。
年前大寒交初气，其日干合年干位。
交气时干或合之。二者皆为平气至。
如丁酉岁木运不及，当金行胜。正月建壬与丁合，此木逢胜。己卯岁土不及，当木行胜。金
行复至，九月建甲与己合，土乃还位，此行胜己后，亦行复己毕也。年日时除交初气，余虽相遇，
不相齐合，谓甲与己合之类是也。
【岁会之图】
运气与在泉之气相合，其气化表现称为：阳年称为“同天符”，阴年称为“同岁会”。因此在六十年中，太乙天符有四年，天符有十二年，岁会有八年，同天符有六年，同岁会有六年。这五种情况分开计算共有三十六年，合并计算则只有二十七年。经文说二十四年的原因，是因为没有将岁会计算在内。气候变化运行有多寡之分，病症表现有轻重之别，生死有早晚之异，按照经文进行推算，确实可以知晓。
《天符太乙天符岁会同天符同岁会总歌》
司天之气、岁运及年支，三位参合即为太乙天符。
岁运与年支相合名为岁会，土运逢辰戌丑未四正位必属此类。
在泉之气合于岁运，阴年为同岁会，阳年则为同天符。
为何单独设立天符这一名称？取意在于司天之气与岁运相合。
“符”意为符合。“太乙”是尊称。唯独辰、戌、丑、未寄位于子、午、卯、酉这四正之位，且主岁会的，其余年份不属于正中相合的情况，故不在此列。邪气伤人，遇太乙天符则病势暴急而致死，遇岁会则病势徐缓而持久，遇天符则病势迅速而危险。
无论是否有图，阅读这首诗歌便能通晓其义理，因此记录于此。
若不及年月干支相合，又未遇到胜复之气，则气候亦平和。
当胜气过后，复气也运行完毕，本气即可回归正德之位。
年前大寒节气交接初之气时，该日的天干与年干相合。
交接气时的天干若与之相合，这两种情况都属于平气之年到来。
例如丁酉年，木运不及，应当金行胜气。正月建壬，壬与丁相合，这是木运逢胜气（实则指通过合化或制约达到平衡，此处原文意指胜复调节机制）。己卯年，土运不及，应当木行胜气。金行复气至，九月建甲，甲与己相合，土气乃回归原位，这就是胜气过后、复气也运行完毕的情形。年、日、时除了交接初之气外，其余时间虽然相遇，但并不完全齐整相合，比如甲与己相合之类即是这种情况。
[Diagram of Suihui]
When the Yùn (Climate/Operation) combines with the Qi in the Lower Palace (Zai Quan), the resulting Qi transformation is termed: for Yang years, "Tong Tian Fu" (Same Heaven符); for Yin years, "Tong Sui Hui" (Same Year Meeting). Thus, within a sixty-year cycle, Tai Yi Tian Fu occurs in 4 years, Tian Fu in 12 years, Sui Hui in 8 years, Tong Tian Fu in 6 years, and Tong Sui Hui in 6 years. Counting these five categories separately yields 36 years; counting them collectively yields only 27 years. The classic text mentions 24 years because it does not include Sui Hui. Variations in movement and quantity lead to differences in disease manifestation (mild or severe) and timing of life and death. By following the classics and calculating, this can indeed be known.
[Diagram of Tong Tian Fu and Tong Sui Hui]
*General Song on Tian Fu, Tai Yi Tian Fu, Sui Hui, Tong Tian Fu, and Tong Sui Hui*
When Si Tian (Heavenly Ruler Qi), Yun (Annual Operation), and Nian Zhi (Earthly Branch of the year) interact, they form Tai Yi Tian Fu.
When Yun combines with Nian Zhi, it is named Sui Hui; Earth Yun meeting Chen, Xu, Chou, or Wei (the four cardinal directions) must follow this path.
When Zai Quan combines with Yun, Yin years are Tong Sui Hui, while Yang years are Tong Tian Fu.
Why is Tian Fu singled out? Its meaning lies in Si Tian combining with Yun.
"Fu" means conformity. "Tai Yi" is an honorific title. Only when Chen, Xu, Chou, and Wei (which reside in the positions of Zi, Wu, Mao, You) act as the main Sui Hui do they qualify; other years do not fit the central combination rule. When pathogenic factors attack humans, Tai Yi Tian Fu causes sudden death; Sui Hui leads to a slow but persistent course; Tian Fu results in rapid and critical illness.
Regardless of whether diagrams are present, reading this song allows one to understand its principles, so it is recorded here.
If the Heavenly Stems and Earthly Branches of the year and month do not match, and no Sheng (Overcoming) or Fu (Rebounding) Qi occurs, the climate remains balanced.
After the Sheng Qi passes and the Fu Qi completes its cycle, the Ben Qi (Original Qi) returns to its proper virtuous position.
At the beginning of the first Qi, around the Great Cold solar term, if the day's Stem matches the year's Stem, it indicates balance.
If the Stem at the time of Qi transition also matches, both scenarios indicate the arrival of Ping Qi (Balanced Qi).
For example, in the Ding You year, Wood Yun is insufficient, so Metal Qi acts as Sheng. In the first month, the branch Ren combines with Ding, indicating Wood encountering Sheng (adjustment). In the Ji Mao year, Earth Yun is insufficient, so Wood Qi acts as Sheng. When Metal Qi rebounds (Fu), in the ninth month, the branch Jia combines with Ji, allowing Earth to return to its position. This illustrates the completion of Sheng after overcoming and Fu after rebounding. Except for the transition into the first Qi, interactions among Year, Day, and Hour stems may meet but do not fully align or combine perfectly, such as the case of Jia combining with Ji.