The Book of Changes is the ancient people's observation of the laws of change in nature. It is a work that integrates astronomy, geography, music, art of war, rhyme, arithmetic, religion, etc. You can call it a philosophy book, you can Call it a mathematics book, you can also call it an art of war book, etc.

Since the ancient sage Fu Xi made the Book of Changes, various categories of Chinese culture and hundreds of schools of thought have all been imprinted with the "Book of Changes". It is broad, profound and all-encompassing and is called the first of the group of scriptures.

Human psychology is complex. One moment one is in a good mood, another one is in a bad mood. It is constantly changing and one’s heart is unpredictable. This coincides with the changes in nature observed in the Book of Changes. ***Everything that is the same is changing.

People have good and bad moods, joy, anger, sorrow, and seven emotions and six desires. The Book of Changes has Yin and Yang, the Five Elements, and the Four Symbols and Bagua. Opposite and unified, this is their relationship.

Some of the principles stated in the "Book of Changes" can directly point to people's hearts and teach people how to do it. Can it be regarded as a series of psychological guidance books? The benevolent sees benevolence, and the wise see wisdom.