Abstract

"Thai", "No" two hexagram "small to big to", "big to small to" understand "Thai", "No" two key diagram, yin and yang, heaven and earth history are based on the nature of explanation; But if deep thinking, "small to big to", "big to small to" also reflects the thinking of a different direction, that is, from specific to general and different from the general to the specific direction, and this is reflected in the development of pre-Qin thinking logical order. Hexagram sequence by the "Thai" to "No" and "Book of Changes" hexagrams order to develop an arrangement is not arbitrary, but this way of thinking reflection of the logical order of development. How to interpret the two phases that "small to big" and "big to small" are the kcy factors to explain the hexagrams of Tai and Pi, which had been interpreted historically by the theory of Yin and Yang. In fact, these two phases represent two kinds of different thinking inclinations in pre-Qin period which are "from the particular to the universe" and "from the particular to the universe". Moreover, the sequence from Tai to Pi in Zhouyi was not arranged by haphazard but a reflection of this thinking trend