What do you mean by change?

When yarrow and copper coins are used for divination, Lao Yang and Lao Yin will become stubborn, and the Book of Changes will turn things upside down, so Lao Yang and Lao Yin will also become stubborn. Using these two methods, the results are first, second, third, fourth, fifth and last from bottom to top.

Six hexagrams remain unchanged, and the word is broken by this;

A stubborn change, use this stubborn change to drop the word;

There are two changes, which are broken by the two words of this hexagram, but the above is the main one;

Three changes, changing with the original; This hexagram is chastity (body) and changed to regret (use);

Four changes, two unchanged, but the following is the main;

Five changes, unchanged mentality;

Six ideas are changed, and the two ideas of Gan Kun are broken with the word "use".

There are two main ways of divination in ancient times: one is divination, and the other is divination.

The method of divination has a long history. Bone divination appeared at least in Longshan culture period, and bone divination and tortoise divination were widely used in Yin and Shang dynasties. In the later Zhou Dynasty, besides Oracle bone divination and tortoise shell divination, divination was widely used.

Divination is mainly about good fortune and bad fortune, predicting the future. However, good or ill luck, misfortune and happiness, the success of fate and the gain or loss of behavior are actually determined by social environmental factors and the positive role of the subject, and are just two possible trends containing inevitability.

In the Yin and Shang Dynasties, the good or bad fortune in divination was judged according to the explosive crack of the burnt Oracle bones. Of course, it is worth discussing whether the classification of this symbol is the classification of parts. There are many kinds of divination in Yin and Shang Dynasties, and the contents are very complicated. It is difficult to deal with it just by dividing it into five signs. Therefore, the five forms of divination may be a long-standing category, and each constellation may have a finer classification.