The Emerald Tablet—an ancient document that contains the essence of the alchemical teachings—has had an important influence on many Western spiritual and religious traditions. Ostensibly concerned with turning base metals into gold, alchemy was in fact dedicated to transforming the lead of self into the gold of spirit. This brilliant history of alchemy traces its sources back to ancient Egypt, and presents alchemy as a useful, practical system of self-transformation. Each of the seven step...