The Gnostic Mass

Members and initiates of Ordo Templi Orientis (OTO) are not required to also be a member or congregant of the Ecclesia Gnostica Catholica (EGC). The EGC is the ecclesiastic arm of the OTO and offers to the public regular performances of the Gnostic Mass, which Aleister Crowley described as the central ritual, public and private, of the OTO.

If you have an interest in becoming a member or initiate of OTO, I would advise that you first attend at least one Gnostic Mass at a local body somewhere near you. If it is impossible for you to attend a live mass, there are several recorded versions online, and the script is available to read on the internet. If you wish to see a mass performed right away, this one is pretty good: