The Corpus Hermeticum & Emerald Tablet

The Corpus Hermeticum and the Emerald Tablet are the founding texts of Hermeticism, attributed to the legendary Hermes Trismegistus, a figure formed in Greco-Roman Egypt from the fusion of the Greek Hermes with the Egyptian Thoth. Composed in Greek by anonymous authors in roughly the first three centuries of the common era, they were long believed to be of immense antiquity, a belief that lent them extraordinary prestige until later philology placed them in the post-classical world.

Their teaching blends Platonic, Stoic, and Egyptian elements into a vision of a divine Mind from which the cosmos emanates and to which the human soul may ascend through gnosis. The governing axioms are that the All is Mind and that the universe is mental, and, from the Emerald Tablet, that what is above corresponds to what is below. Salvation is framed as the fruit of knowledge and altered consciousness rather than ritual sacrifice.

These two doctrines, mentalism and correspondence, make the Hermetic writings a structural seed of every later teaching that inner states govern outer conditions. Their picture of reality as a graded descent from divine Mind into matter was taken up by alchemy and Renaissance magic, and later re-read by New Thought as the descent of spirit into denser form.