This book was originally written in thirteen days in 1564. Dee here explains his discovery of the ‘monas’, or unity underlining the universe, as expressed in a hieroglyph, or symbol. The monad represents the alchemic process and goal of the Magus, who in partaking of the Divine, achieves that gnostic regenerative experience of becoming God, and thus furthering the redemption and transmutation of worlds.  Everything Dee states, is dependent upon the circle and the straight line, which in turn, are formed from the point. From this point revolve Sun and Moon, intersected to suggest their conjunction and generative faculty. these rest upon a cross, the ternary and quaternary, and all are mounted upon two connected half-circles, the original fire of creation. the key to the glyph is in the meditation and study of it, and all it suggests to the “Creative memory”. It is not surprising that Dee’s contemporaries in the universities chose to ignore this valuable treatise on a key to the universe, thus causing him to to have engraved upon the frontispiece, “Who does not understand should either learn or be silent.”