" Hermetic Philosophy is the “book” which the High Priestess holds on her knees, whilst the three layers on her tiara represent the stages of the descent of revelation from the mystical plane to the gnostic plane, then from the gnostic plane to the magical plane and lastly, from the magical plane to the philosophical plane-to the plane of the “book” or the “doctrine. "

― Valentin Tomberg , Meditations on the Tarot: A Journey into Christian Hermeticism