The Book of Changes is introduced as follows:
The Book of Changes is an ancient classic that expounds the changes of everything in the world. Including Lianshan, Ghost Stories and Zhouyi, of which Lianshan and Ghost Stories have been lost and only Zhouyi exists in the world.
The Book of Changes is the crystallization of China's wisdom. He understands and grasps the world from the perspective of holism, and regards man and nature as an organic whole that is mutually inductive, that is, "the unity of man and nature".
The Book of Changes has long been used as a "soothsayer". "Divination" is to predict the development of future events, and The Book of Changes is a book that summarizes the laws and theories of these predictions.
The Book of Changes is regarded as the general program and the first classic of China traditional culture. All-encompassing, it is an outstanding representative of Chinese culture; Vast, subtle and all-encompassing, it is also the source of Chinese civilization. Its content involves philosophy, politics, life, literature, art, science and many other fields, and it is a classic shared by all schools.
The Book of Changes is a product of ancient civilization and a philosophical work with a high degree of integration of natural science and social science in China. The Book of Changes is divided into three parts, Lianshan and Guizang in the era of Emperor Wu of the Han Dynasty, and Zhouyi in the Qin and Han Dynasties, which are collectively called "three changes" (the other said that all three books were written in ancient times).