The "Book of Changes" is an ancient book of wisdom and a guide to real life. Professor Feng Youlan, a famous Chinese philosopher, once said: "The Book of Changes is the algebra of the universe." Professor Liang Shuming, known as the "backbone of China," said: "The Book of Changes is the cultural treasure of the Chinese nation." Professor Zhang Dainian once said: "The Book of Changes is the highest classic of traditional Chinese culture." Professor Ji Xianlin said: "The Book of Changes is the source of Chinese culture." From ancient times to the present, many people have gained the wisdom and methods for success by studying the Book of Changes. . The purpose of this book is to analyze the importance of the wisdom of the "Book of Changes" to people's success in life in today's society. The book starts from the original meaning of the sixty-four hexagrams of the "Book of Changes", uses vivid examples and precise comments to explain in a simple and easy-to-understand way the ideas in the "Book of Changes" about how to cultivate one's moral character, conduct one's life, and manage one's family and career. The wisdom of the "Book of Changes" is introduced into the life situations of modern society, helping readers to understand the "Book of Changes" more thoroughly and use the wisdom of the "Book of Changes" to achieve career and life.