What are the uses of the Book of Changes?

Yi is changeable, and Jing is law (or classic). That is, the Book of Changes, a rigorous philosophical work, can be used as divination in science. It is only because it is profound and difficult to understand that there are many far-fetched theories. The Book of Changes is the oldest book in China culture. Orthodox scholars throughout the ages praised it in many different languages. On the whole, they praised it as the "head of the group classics" and respected it very much. On the contrary, it is considered as an ancient divination book, which is close to the false words of Wu Zhu. It was only after Confucius' Biography of Zhouyi and many scholars in the past dynasties that the later talents blindly followed and respected it. What's more, since modern times, there have been many similar frivolous taunts. Undeniably, The Book of Changes used to be an ancient divination academic, but in Shang and Zhou Dynasties, it was incorporated into the academic field of "Heaven and Man" from the divination category through the collation and annotation of King Wen, thus the Book of Changes became the foundation of China's humanistic culture.

Since the Eastern Zhou Dynasty, it has been studied and described by Confucius and scattered as the source of hundreds of academic thoughts. This is an undeniable fact. Therefore, we should study the culture of China, whether it is Confucianism, Buddhism and Taoism in the Spring and Autumn Period and the Warring States Period, or even Confucianism, Buddhism and Taoism after the Tang and Song Dynasties. If we don't explore the Book of Changes, we will forget our ancestors.