Alchemy
Alchemy [from Arab al-kimiya from al the + kimiya philosopher’s stone from Greek chyma fluid] The art of divine magic under a chemical symbolism. The ancient alchemists, more conscious of the unity of nature, perhaps did not need to distinguish between a natural and spiritual alchemy or to regard one as symbolic of the other. Alchemy was introduced into Europe by the Arabs, from whom it may be traced to Egypt and India. Modern Europe knows it best from medieval alchemists, who studied its physical aspects, though some could interpret the symbolism and work out the analogies between the physical elements and processes and their spiritual counterparts.
Alchemy seeks the primal unity beyond diversity: a homogeneous substance from which the many elements were derived; a pure gold which could be obtained from baser metals by purging them of the dross with which the pure element was alloyed; an elixir of life which would cure all diseases. The transmutation of metals was their magnum opus; the agent to be employed was the philosopher’s stone. Though these processes are possible physically, the spiritual processes to which they correspond are incomparably more important. The base metals are the passions and delusions of the lower mind; and the pure gold is the wisdom of the manas in alliance with buddhi.
The homogeneous substance and the elixir of life have virtually the same meaning. The perpetuum mobile (ever moving) and the inexhaustible lamp have their counterparts in the eternal motion and the spiritual fire. The three elements sulfur, salt, and mercury denote spirit, body, and soul, or fire, earth, and water.