Liber XV: The Gnostic Mass is a participatory Eucharistic ritual written by Aleister Crowley in 1913. It is the central rite of Ordo Templi Orientis and its ecclesiastical arm, Ecclesia Gnostica Catholica.
Astarte Oasis is a chartered body of Ordo Templi Orientis (O.T.O.), a Fraternal Order of men and women united by common adherence to the Law of Thelema and by common interest in the traditions of mysticism and magick, based on the ideals of self-knowledge, individual liberty, and universal brotherhood. For more infomation, please see: http://www.oto.de Our Events in Berlin: https://www.meetup.com/de-DE/AstarteOasisBerlin/