论《河洛精蕴》的“数理”变占说

On the Theory of "Numerology" Divination System in the Book of Heluo Jingyun

江永《河洛精蕴》一书以“河图之数理”构建了新的变占理论体系,详细解答了《周易·系辞传》中“归奇于扐”与“再扐而后挂”的揲蓍变占方法,突破了以往变占难以例定的缺陷,使河图成为揲蓍变占所依据的“大衍之数”以及“阴阳老少之数”的本原,在当时引发了广泛的讨论。此外,他将《周易》占筮体系中作为“象”之规定性的“数”进行了理论上的提升,认为《易》占不仅兼用“七八之数”,更以“阳进阴退”之理所表现的阴阳往来推移为本质,这就呈现独特的“象”“数”“理”相融合的易学理论特征,发展了清代乃至整个易学史上的变占说。

In the Book of Heluo Jingyun,Jiangyong demonstrated the method of ZhouYi’s divination system.He explained the divination method of "Gui Ji Yu Le" and "Zai Le Er Hou Gua" in the form of "Numerology".He broke through the defect that the previous divination system could not be unified and made "Hetu" become the original basis of "Da Yan Numerology" and "She Shi Numerology" in divination,which caused extensive discussion in Qing dynasty.In addition,Jiangyong theorized in terms of prescriptive numerology structure,and believed divination not only uses the "She Shi Numerology",but also uses the "Seven and Eight Numerology",which contains the essence of Yin and Yang exchange and processes as the core of divination.In a word,he provides a rigorous summary of the essential identity of "Numerology","Images" and Confucian Neo-theory with stronger explanatory power and judgment,which provides a more three-dimensional theoretical perspective for ZhouYi theory observation and developed the theory of divination in the Qing dynasty and the whole history of the ZhouYi.