The english spelling of the Greek work for 'will' or 'intention.' Also the name of a philosophical/religious practice founded by Aleister Crowley. It is founded on the notion that knowing and doing one's True Will provides absolute freedom and enlightenment. Crowley's Liber AL vel Legis or The Book of the Law is the central document which provides the basis for Thelema. This book declares that "Love is the law, love under will", "Do what thou wilt shall be the whole of the Law", and "The word of the Law is Thelema".
The Greek Thelema is the basis of the word Thelemite, coined by François Rabelais, the sixteenth-century French humorist-philosopher in his classic work Gargantua, where it is used to describe the dwellers in a sort of anti-monastery, the Abbey of Thélème.