It is the light from the Fiat of the Great Architect of the Universe. To understand it is necessary for all works of higher magick. Everything that happens are but a part in the great chains of destiny. By learning how these links work, a diligent mage can follow their paths backwards and divine their future ways. Not all forces of the universe are in perfect balance.
Some forces have destructive consequences, while others impose randomness and chaos on the others.
The physical world is not the only plane of creation. Other levels of existence spread out both above and below it, filled with denizens and powers beyond the ken of mankind. These powers and the links between the various planes can be controlled and understood by the wisdom of Tradition. The Elements . Everything is built out of the interactions between the four elements.