Yang: Represented by (-): Xiang Yang, Xiang Fu, Xiang Jun, Xiang Daren, Xiang Man, Xiang Qi, Xiang Zheng, Xiang Gang, Xiang Jian and Xiang Dong.
Yin: indicated by (-): like Yin, like earth, like people, like mother, like little people, like women, like even numbers, like softness, like stillness, like lightness, like dead things and so on.
In order to distinguish between Yin and Yang, the word "nine" is used for Yang and "six" for Yin.
Yang hexagrams are called the ninth day, the second day, the third day, the fourth day, the fifth day and the ninth day.
Yin hexagrams are called the sixth day, the second day, the third day, the fourth day, the fifth day and the sixth day.
In a hexagram, there are yin and yang. According to the order in which they live, add a "nine" or a "six" before the number respectively.
There is one more "nine" in Gangua and one more "six" in Kungua, so these two hexagrams each have seven numbers. This is not the case with the other 62 hexagrams.
In the original text of Zhouyi, there are explanations for the sixty-four hexagrams. Its content consists of two parts, one is called "Gua", which is devoted to discussing the meaning of Gua.
For example, the six ideas of "incompatible with fire and water" are "useless" Constant. The fox helps the poor. Wet its tail. There is no profit. "Mao means almost the same. Humidity means humidity. The whole sentence means: if you can't do it well, you will succeed in the end. In the speech, the little fox was used as a metaphor. Brave as he was, he lacked experience, so he wet his tail and failed to reach the other side. But when the fox has a careful plan and experience, he will succeed. You can look up the divinatory words of your divinatory symbols in the original Book of Changes.