易象视域下的俞琰易学思想探究

A Study of Yu Yan's Yi-ology under the View of Imagery Theory

俞琰易象学的核心是汉易的象数学和宋易程朱的义理学,其内容包含卦象、卦体和爻象,因为他注经的原则是象数义理并重,由天道的易象推及人道的义理,如此借《易》来上贯天道,下通人事,故易象是其关键之关键,它是贯通天道和人道的中间符号,即通过卦象来比拟自然万象,通过卦体如对体、覆体等来推断万象的关系,而爻象的主爻可统摄卦义,"乘承比应"可揭示卦义深层的内涵。圣人就是将卦象类比于自然的万象,如此一来,无形的天地规律也可借易象学来阐明,这样就可推衍出人道的义理。

Yu Yan＇s Imagery Theory derives its origin from the I-Ching Theory of Han Dynasty and Cheng-Zhu＇s I-Ching Theory of Song Dynasty.It mainly discusses the theory about hexagram images,hexagram bodies and linear images,and follows the principle of balancing between image-number system and argumentative philosophy while Yu wrote his Commentaries of I-Chi.By doing so,he attempted to deduce the way of man from the way of heaven,so as to make a connection between heaven and man.The key in the process is the Hexagram image,which is the symbol connecting the way of heaven and that of man,that is,the hexagram images represent the natural phenomena,the hexagram bodies the relationship of the natural phenomena,the main line of the linear images the meaning of the hexagram,and Cheng-Cheng-BiYing（乘承比应）the inner connotation of the hexagram.The sages made analogy between the hexagram images and the natural phenomena and the invisible laws of the heaven and earth can also be illuminated through hexagram images,from which the philosophy of man derives.