This book is the most influential of all his works, which can best reflect his ideological style. The main purpose of this book is to reveal the spiritual life of China people, publicize the value of China traditional culture, and advocate the Confucian theory of saving the West. It is one of the representative works of oriental cultural thoughts that rose in the world after the First World War. From the perspective of the history of cultural thoughts, this book is of great significance to the "enlightenment" of China's spiritual life and the elaboration of China's cultural and moral spiritual values.