I hold the view that the alchemist’s hope of conjuring out of matter the philosophical gold, or the panacea, or the wonderful stone, was only in part an illusion, an effect of projection; for the rest it corresponded to certain psychic facts that are of great importance in the psychology of the unconscious. As is shown by the texts and their symbolism, the alchemist projected what I have called the process of individuation into the phenomena of chemical change.