The Monas Hieroglyphica is said to hold the profound secrets of the cosmos. The symbol itself is a unified diagram constructed from the characters for the Sun (⊙) and the Moon (C), resting atop the symbols for the four classical elements (the cross, X) taken from the signs for Mercury and Aries. It is a visual manifesto of cosmic unity, asserting that the entire physical universe, from the perfect celestial spheres to the mundane terrestrial elements, can be resolved into one fundamental, geometric principle. Dee posits that the study of this Monad is a "mathematical and cabalistic" exercise, where meditating upon the precise proportions and component forms allows the Halikarnians acolyte to perceive the pure Forms of Geometry and arithmetic that generate reality itself.
The theoretical purpose of the Monas Hieroglyphica is to gain access to the Hylaean Theoric World by means other than simple abstract contemplation. Dee's work is a manual for applied Theorex, suggesting that the Monad is not merely a representation of the universe, but an operative key capable of influencing it. If the Monad truly contains the primordial Forms, then manipulating or even drawing the symbol in a ritual manner could force the local world to momentarily align with the higher, purer laws of the Hylaean realm.
In another contest it is hypothesized to be an abstract geometric map of the Multiverse; the central point of the symbol is the "coupling point" or junction between adjacent Worldtracks. Mastering the Monad, therefore, could provide the mathematical coordinates necessary to intentionally locate and even shift one's awareness or presence across the infinite worlds of the Polycosm.