Why should I use six hexagrams in the Book of Changes? Why not use five or seven?

It is mainly the development of Sunday deduction, which develops the hexagram of six AI, so the book of changes uses the word six AI. The reason why five Ai's or six Ai's are not used is because nan huaijin said that things in the universe will not change in more than six stages, so at most, they will change in six stages. If it rises to the seventh stage, it will be the beginning of another situation. Science can also prove that the changes of physics, electrons and atoms are basically the same.

Six Ai is divided into internal and external hexagrams, and the upper three Ai stands for external hexagrams, so the lower three Ai stands for internal hexagrams. There is a little story about it. During the Liang Dynasty in the Southern Dynasties, several fortune tellers went to play, and they usually liked to guess games through divination. During the game, he would put the mouse in a wooden box, and then let the ministers guess that Liang Wudi had divined a divination, saying that there were dead mice in it, and some diviners said that there were four mice in it.

Liu Aiwei's method of integral mainly comes from nature, and the most important thing is to summarize it with nature. Therefore, everything in the universe is a combination of natural phenomena, and everything calculated in the Book of Changes is inseparable from nature, that is, people often say that heaven and earth are in harmony, and Gankun is in the front, which doomed people to be extraordinary. In fact, there are many things in the Book of Changes that ordinary people can't understand.

The Book of Changes is a very extensive and profound book, and most of us can't find out the mystery from it, but we still know the magic of the Book of Changes very well. After all, it was left by our ancestors, and there are indeed magical places.