From the perspective of traditional self-cultivation culture, this series of books explores the origin of solar term culture and corrects the time and space coordinates of self-cultivation, health-preserving and doing things misunderstood by history; it combines the astronomy, calendar, farming, folk customs, health-preserving and literature knowledge of solar terms with the self-cultivation culture to reveal the connotations of the solar term culture and provide the practical self-cultivation, health-preserving and conducting method system. At the same time, the series details the self-cultivation practices in 24 solar terms and has the very high application value.