Originally it was intended to be modelled after and associated with European Freemasonry, such as Masonic Templar organizations, but under the leadership of Aleister Crowley, O.T.O. was reorganized around the Law of Thelema as its central religious principle.
La început, s-a dorit modelarea după, și asocierea acestuia cu francmasoneria europeană, prin organizațiile Masonilor templieri, dar, sub conducerea lui Aleister Crowley, O.T.O. a fost reorganizat având Legea Telema ca principiu religios central.