person1898–1947

Aleister Crowley

Disciplines:

Summary

British occultist who founded the religious philosophy of Thelema — 'Do what thou wilt shall be the whole of the Law' — developed the Thoth Tarot with Frieda Harris, performed elaborate magical rituals, and became the defining figure of 20th century Western occultism, calling himself 'The Great Beast 666'.

Core Contribution

Created the most systematic and influential system of Western occult practice in the 20th century — Thelema's synthesis of Kabbalah, Eastern yoga, ceremonial magic, and Crowley's own revelations (The Book of the Law) provided the conceptual vocabulary that subsequent occultism has largely operated within.

Key Spikes & Highlights

Thelema's Core Law (Crowley's founding principle: 'Do what thou wilt shall be the whole of the Law' — interpreted not as hedonistic license but as the injunction to discover and enact one's True Will, the deep authentic purpose of the individual's incarnation, which is necessarily in alignment with cosmic order — making will the sacred as opposed to Christian submission)

Notable Works & Achievements

The Book of the Law

Magick in Theory and Practice

The Book of Thoth

Historical Influences

Golden Dawn Kabbalah Buddhism

Intellectual Lineage

Royal Leamington Spa England Cambridge Golden Dawn Thelema Cefalù Sicily

Contemporaries & Peers

W.B. Yeats Mathers

Minds Influenced

Western occultism Kenneth Grant Jungian tradition

Intellectual Posterity

Thelema Do what thou wilt Thoth Tarot The Book of the Law Aleister Crowley as occult figure

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