This is the Yixue derived from the "Book of Changes". As our country's traditional culture, Yixue has experienced thousands of years of development and is still enduring. There must be some reason for it. The essence of the Book of Changes is to help people "seek good fortune and avoid evil". There are often Zhouyi exchange conferences among the people.
For laymen, you can find books to study on your own, or you can seek out experts. Whether you become enlightened or not depends on whether you have wisdom or not