This is the richest sourcebook of Taoist teachings ever to appear in the English language. It focuses on vitality, energy, and spirit—the “three treasures” of human life as envisioned in Taoist thought. The three treasures are understood to be the source of the creativity, capability, and intelligence of which humankind is capable, and Taoist adepts developed techniques for working with the treasures for health, strength, and wisdom. This volume traces the teachings on these three treasures through the long history of Taoism up to the present century, highlighting quintessential texts on the practical application of these principles to mental and physical well-being.