Ordo Templi Orientis

The Ordo Templi Orientis (OTO), or Order of the Temple of the East, is important for several reasons, including its role in the development of Thelema, its influence on various magical and esoteric traditions, and its historical significance as a fraternal and religious organization. 

Here’s a more detailed look at its importance:

• Thelema and The Book of the Law: OTO was the first organization to embrace the teachings of Thelema, a system of thought and practice based on the principles outlined in The Book of the Law, which Aleister Crowley received in 1904. The Law of Thelema, “Do what thou wilt,” is a central concept in OTO. 
• Influence on Esoteric and Magical Traditions: OTO’s influence on magical and esoteric traditions is significant. It has been a source of ritual, symbolism, and philosophical ideas that have been incorporated into various other esoteric systems. 
• Fraternal and Religious Organization: OTO is an international organization that operates as both a fraternal and religious order. It uses an initiatory system with degree ceremonies to establish fraternal bonds and impart spiritual and philosophical teachings. OTO also includes the Ecclesia Gnostica Catholica (EGC), which is the religious arm of the Order, with its central rite being the Gnostic Mass. 
• Historical Significance: OTO has a rich history, beginning with a Masonic-inspired foundation and evolving under the leadership of Aleister Crowley to become a prominent center for Thelemic thought and practice.