Hermes Trismegistus was the author of the Hermetic Corpus. It is believed that he was a pagan prophet from early Antiquity who foresaw the coming of Christianity. He was a contemporary of Moses and was known to have received the prisca theologia (the doctrine, given to ancient man by God, that proves a true theology, which threads through all religions, exists). The name Trismegistus means “thrice great.” Hermes was called this because he was the greatest priest, philosopher and king. There is some debate as to whether or not he existed or was a combination of the Greek god, Hermes, and the Egyptian god, Thoth. Many of the cults in the last 2,000 years can trace their roots to the Hermetic philosophies and practices.