Experience the Sublimity of Thelema

Take an immersive journey into the heart of Thelema with the Gnostic Mass

Attend Gnostic Mass

Gnostic Mass

What is the Gnostic Mass?

The Gnostic Mass, also known as Liber XV: Eccesiæ Gnosticæ Catholicæ Canon Missæ, is the central ritual of Ordo Templi Orientis. Crafted by Aleister Crowley in 1913, it is a celebration of the divinity of the universe in all its forms, devoid of dogma and designed to evoke a sense of wonder and awe.

Why Attend?

Step into a world where the boundaries between the visible and the invisible, between nature and the divine, and between desire and religion begin to blur. The Gnostic Mass offers:

  • Spiritual Depth: Dive into the symbolic richness of the Mass, where every gesture and word carries layers of meaning waiting to be explored.
  • Community: Join a diverse congregation on a shared journey of spiritual discovery and personal transformation.
  • Beauty and Drama: Witness a beautiful, profound dramatic ritual that engages the senses and stirs the soul.
  • Inclusivity: Open to all, regardless of background or beliefs, the Mass invites everyone to partake in its mysteries.

What to Expect

The Gnostic Mass is a participatory ritual where both the attendees and the clergy bring spirit to life. 

  • The Deacon will explain the few simple gestures and actions to new attendees.
  • Missals are available so that congregants may follow along with spoken parts.
  • We offer kneeling pads and literature in Braille for the visually impaired.
  • The ritual culminates in the sacrament of communion, when everyone participates body and soul in the truths of the ritual.
  • We offer a low-pressure environment where new attendees are encouraged to allow the ritual itself to guide them on a personal journey of introspection and revelation. 
  • For those seeking more information, a video of a celebration of the Gnostic Mass may be viewed here.

Your Journey Begins Here

No prior experience or formal membership required. The Gnostic Mass is typically the first OTO event people attend. 

Step into a world of mystery and love. Embrace the beauty, depth, and transformative power of the Gnostic Mass. 

Upcoming Events

23
Nov

Initiation into the Tarot: The Magus

Horizon O.T.O. hosts a transformative series of events dedicated to unraveling the profound symbolism and...
2024-11-23
19:00 - 21:00
America/Los_Angeles
01
Dec

Gnostic Mass

Join Horizon Lodge as we celebrate Liber XV: The Gnostic Mass. The Gnostic Mass—the full title...
  • Horizon Ordo Templi Orientis, 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2024-12-01
    17:30 - 19:00
    America/Los_Angeles
    21
    Dec

    Winter Solstice Ritual: From the Old Aeon to the New

    Winter Solstice Ritual: From the Old Aeon to the NewJoin us on Thursday, December 21st,...
  • 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2024-12-21
    19:00 - 20:30
    America/Los_Angeles
    28
    Dec

    Initiation into the Tarot: The Devil

    Horizon O.T.O. hosts a transformative series of events dedicated to unraveling the profound symbolism and...
    2024-12-28
    19:00 - 21:00
    America/Los_Angeles
    05
    Jan

    Gnostic Mass

    Join Horizon Lodge as we celebrate Liber XV: The Gnostic Mass. The Gnostic Mass—the full title...
  • Horizon Ordo Templi Orientis, 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2025-01-05
    17:30 - 19:00
    America/Los_Angeles
    18
    Jan

    Gnostic Mass

    Join Horizon Lodge as we celebrate Liber XV: The Gnostic Mass. The Gnostic Mass—the full title...
  • Horizon Ordo Templi Orientis, 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2025-01-18
    18:30 - 21:00
    America/Los_Angeles
    25
    Jan

    Initiation into the Tarot: The Empress

    Horizon O.T.O. hosts a transformative series of events dedicated to unraveling the profound symbolism and...
    2025-01-25
    19:00 - 21:00
    America/Los_Angeles
    02
    Feb

    Gnostic Mass

    Join Horizon Lodge as we celebrate Liber XV: The Gnostic Mass. The Gnostic Mass—the full title...
  • Horizon Ordo Templi Orientis, 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2025-02-02
    17:30 - 19:00
    America/Los_Angeles
    15
    Feb

    Gnostic Mass

    Join Horizon Lodge as we celebrate Liber XV: The Gnostic Mass. The Gnostic Mass—the full title...
  • Horizon Ordo Templi Orientis, 2820 Thorndyke Ave W, Seattle, WA 98199, USA View on Map
    2025-02-15
    18:30 - 21:00
    America/Los_Angeles
    22
    Feb

    Initiation into the Tarot: The Sun

    Horizon O.T.O. hosts a transformative series of events dedicated to unraveling the profound symbolism and...
    2025-02-22
    19:00 - 21:00
    America/Los_Angeles