Alchemy Is a Very Broad Church
Alchemy is very old. Ancient Egyptian texts talk of techniques of distillation and metallurgy as mystical processes. Greek myths such as the quest for the Golden Fleece can be seen to have an alchemical layer of meaning, and Fludd, Boehme and others have interpreted Genesis in the same alchemical terms.
A quick survey of alchemical texts ancient and modern shows that alchemy, like the [Kabbalah], is a very broad church. If there is one great mysterious ‘Work’, it is approached via a remarkable variety of codes and symbols. In some cases the Work involves Sulphur, Mercury and Salt, in others roses, stars, the philosopher’s stone, salamanders, toads, crows, nets, the marriage bed, and astrological symbols such as the fish and the lion.
There are obvious geographical variations. Chinese alchemy seems less about the quest for gold and more about a quest for the elixir of life, for longevity, even immortality. Alchemy also seems to change through the ages. In the third century [C.E.] the alchemist [Zosimos] wrote that ‘the symbol of the chymic art—gold—comes forth from creation for those who rescue and purify the divine soul chained in the elements’. In early Arab texts the Work involves manipulations of these same Four Elements, but in European alchemy, rooted in the Middle Ages and flowering in the seventeenth century [C.E.], a mysterious fifth element, the Quintessence, comes to the fore.
If we begin to look for unifying principles, we can see immediately that there are prescribed lengths of time or numbers of repetitions for the various operations, the distilling, the applying of gentle heat and so on.
There are obvious parallels, then, with meditative practice and this suggests immediately that these alchemical terms may be descriptions of subjective states of consciousness rather than the sort of chemical operations that might be performed in a laboratory.
— The Secret History of the World, pp. 338-40