(Sang, “mutual”; saeng, “life” or “to give birth to life.”) A core precept of Jeung San Do. In Eastern philosophy, sangsaeng is a natural dynamic of the five elements in which one phase engenders another (i.e., water engenders wood, wood engenders fire, fire engenders earth, earth engenders metal, and metal engenders water). In terms of human relations, sangsaeng signifies the acts of bettering one another’s lives and ultimately saving lives. Sangsaeng is the attainment of harmony among all life, and it is the universal state of existence in the Later Heaven.