The first task of the Magician in every ceremony is therefore to render his Circle absolutely impregnable. - Aleister Crowley

As above, so below.

The discovery of radioactivity created a momentary chaos in chemistry and physics; but it soon led to a fuller interpretation of the old ideas. It dispersed many difficulties, harmonized many discords, and — yea, more! It shewed the substance of Universe as a simplicity of Light and Life, manners to compose atoms, themselves capable of deeper self-realization through fresh complexities and organizations, each with its own peculiar powers and pleasures, each pursuing its path through the world where all things are possible.

MAGICK is the Science and Art of causing Change to occur in conformity with Will.*