The Book of Changes is a classic in Chinese traditional culture. He originally came from our lives. It is the rules and wisdom that our ancients summarized based on the changes in some natural phenomena in life. Of course it's very life-like. As the saying goes, simplicity leads to great truth. The true principles in nature are very simple and easy to understand. Nature does not teach people very complicated or profound principles.
The Yi in the Book of Changes itself contains two meanings. One is the meaning of change, the laws followed by the repeated changes of heaven and earth. The other one means easy. It just needs to be easy to understand.
Tai Chi generates two phenomena, two phenomena generates four images, and four images generate Bagua. He used a simple 64 hexagrams to summarize the laws and connections between heaven and earth and all things. Many people think that the I Ching is used for divination. In fact, that is a one-sided understanding of the I Ching. Including myself in my early years, I thought so too. Divination is only one part of the I Ching. People use the connections between heaven and earth introduced in the Book of Changes to predict and infer.
The real I Ching is actually a classic that introduces the relationship between man and nature. If you study the I Ching well, you will have a good understanding of the natural changes of heaven and earth. There is a saying that those who are good at changing do not predict. Those who use the I Ching for divination. Often we only scratch the surface of the I Ching. Those who truly understand the Book of Changes have great wisdom. They often do not easily use the I Ching for divination. Because, after they understood the I Ching, they felt that there was no need for divination. Human destiny is the same as nature, and nature has its own laws. It is recommended that you read all three classics: the Yi Jing, the Huangdi Neijing and the Tao Te Ching. Basically, you will have a good outline from the inside to the outside. I have a very basic understanding of the inner workings of my body and the workings between heaven and earth. You will know how to live according to the weather, and you will also know how to take care of your own health according to the weather. Prevent disease before it occurs.