NOTE: it is in the following sense that I use the words ‘magick’ and ‘magic,’ in my fiction comporting, as it does, to an actual part of nature.
—GTJ
Magick, in the context of Aleister Crowley‘s Thelema, is a term used to show and differentiate the occult from performance magic and is defined as “the Science and Art of causing Change to occur in conformity with Will“, including “mundane” acts of will as well as ritual magic. Crowley wrote that “it is theoretically possible to cause in any object any change of which that object is capable by nature”. John Symonds and Kenneth Grant attach a deeper occult significance to this preference.
Crowley saw Magick as the essential method for a person to reach true understanding of the self and to act according to one’s true will, which he saw as the reconciliation “between freewill and destiny.” Crowley describes this process in his Magick, Book 4:
One must find out for oneself, and make sure beyond doubt, who one is, what one is, why one is …Being thus conscious of the proper course to pursue, the next thing is to understand the conditions necessary to following it out. After that, one must eliminate from oneself every element alien or hostile to success, and develop those parts of oneself which are specially needed to control the aforesaid conditions.
—Crowley, Magick, Book 4
