 Much of the Western Esoteric tradition is based on a blend of Hermeticism and the "Kabbalah Ma'asit", so called magical or practical Kabbalah.Occultism uses the Hermetic and Kabbalistic theory of creation and angelic/demonic forces, as a basis for ritual magic, and theurgy.Most magic theory involves the manipulation of Yetzirah, the world of Formation, and letting the effect trickle down to the physical universe (in accordance to the Hermetic concept of "as above, so below").