Hermeticism is a religious/philosophical tradition based on the Hermetic Corpus, written by Hermes Trismegistus. Hermeticism descends from a doctrine (priscia theologia) which proves that a single theology exists in all religions and was given directly to man by God during the age of antiquity. Trismegistus believed that there were three parts of the wisdom of the entire universe: alchemy, astrology, and theurgy. Hermeticism became widely used by scientists during the Renaissance and Reformation, because they hoped the use of magical arts could control nature. There was a faith that the Hermetic doctrine, since it was the instructions of a singular God, could explain all. After the doctrine was discarded by the Christian church, Hermetic societies were formed. Many of these societies are still active today. This is primarily a result of a 19th century revival, which included participants like Dr. Anna Kingsford, Edward Maitland, Moina and Samuel Mathers among many others.