Magick is an Early Modern English spelling for magic, used in works such as the 1651 translation of De Occulta Philosophia, Three Books of Occult Philosophy, or Of Magick. The British occultist Aleister Crowley, chose the spelling to differentiate the occult from stage magic and defined it as "the Science and Art of causing Change to occur in conformity with Will", including both "mundane" acts of will as well as ritual magic. Crowley claimed that "it is theoretically possible to cause in any object any change of which that object is capable by nature".
