Mystic. He probably wrote the Chymische Hochzeit Christiani Rosenkrevz, a book which for the first time discussed the previously secret doctrines of the Rosicrucians, a closed membership society which combined Catholic Christianity, mysticism, and service to those in need, which seems to have had roots in Neoplatonism, agnosticism, and the Cabal, and which also may have incorporated some elements of magic and astrology.