The Heavenly Body of Hermetism: Beliefs and practices that influence the world through contact with heavenly forces

Hermes Mercurius Trismegistus, floor mosaic Cathedral of Siena (1480s)

The terms Hermeticism and Hermetism can, like Gnosticism and Rosicrucianism, mean different things in different contexts and time periods. The term “hermetism” is used here specifically for the historical, also Latin, tradition; whereas the term “hermeticism” is used to denote the modern Victorian and Edwardian era developments typified by the Hermetic Order of the Golden Dawn and others.