Seeking the beautiful implication of the number "six" in the traditional culture of China.

In the middle and late Warring States period, many scholars regarded exploring some digital expression of everything in the world as the fundamental way to explore the universe, life and politics. Lu Chunqiu inherited this exposition and tried to integrate various theories. This book uses the mysterious meanings of 12, 5, 8, 6 and other numbers to design a well-organized framework system, so as to convey its compiling intention of "there is heaven above, there is land below, and there is trial in China, so that you cannot escape". The form of 12×5 was adopted in the Twelfth Dynasties, which meant that the theory contained the mystery of heaven and earth and embodied the fundamental system of "Tao". The 8×8 form of the Eight Views includes real talents, practical learning, official and political skills; The 6×6 form of the Six Theories is not only like Liuhe, but also contains the "six systems of human nature", which emphasizes the perspective of people (scholars). The mysterious number system of Lv's Spring and Autumn Annals is based on the calendar numbers and divination numbers in Yi, which integrates the mysterious numbers that have become common sense. This shows that the author of this book tried to transcend the school arguments at that time and seek wisdom from ancient traditions and common sense to solve the mysteries of heaven, earth and man.