The Initiates of the Flame by Manly P. Hall shines on a light on the inner meaning of symbols including the pyramid, holy grail, flame of wisdom, ark of the covenant, all-seeing eye, sword and stone, the elements of alchemy, and other gateways to the unseen world. Hall fills his book with images of sacred symbols, revealing hidden meanings behind initiation rituals and spiritual enlightenment in ancient traditions like Hermeticism and Rosicrucianism.