Hermes Trismegistus

Mythical-historical origin

Hermes Trismegistus is a syncretic figure emerged in Hellenistic Egypt (3rd century BC – 3rd century AD): combination of the Greek god Hermes (messenger of the gods, psychopomp, master of words) with the Egyptian god Thoth (god of wisdom, writing, magic and judgement of the dead). Both were already culturally identified by the Greeks who arrived in Egypt with Alexander; in Hellenistic Egypt the synthesis Hermes-Thoth Trismegistus crystallised.

"Trismegistus" (Greek: Trismégistos) means "thrice-greatest", probably referring to its mastery in three domains: philosophy, astrology and alchemy. The historicity of Hermes Trismegistus is mythical: there was no real human figure with this name. But the literary corpus attributed to him — the Corpus Hermeticum (17 philosophical-mystical treatises in Greek) and the Emerald Tablet (alchemical) — is real and has had enormous historical influence in Western esotericism.

The Corpus Hermeticum and the Emerald Tablet

The Corpus Hermeticum consists of 17 dialogues in Greek where Hermes Trismegistus instructs disciples (Asclepius, Tat, Ammon) on metaphysics, cosmology and the spiritual path. Its central themes: the unity of the Divine, divine nature of the universe, soul as fragment of the divine, salvation through gnosis (direct knowledge), correspondence between micro and macrocosm. The Corpus disappeared from the Latin West after the fall of Rome — it survived in the Arab world and Constantinople, and was rediscovered in Renaissance Florence (1463), translated into Latin by Marsilio Ficino, and revolutionised European thought.

The Emerald Tablet is a much shorter text (12-13 sentences in its standard Latin version) but enormously influential. Its central phrase, "As above, so below", condenses the principle of cosmic correspondence that is the heart of Hermeticism, alchemy and astrology. The tablet was the foundational text of medieval and Renaissance European alchemy: every alchemist knew it by heart and meditated on it for years.

Hermes today

The Hermetic tradition has continued in different forms: medieval and Renaissance alchemy, Christian Kabbalah, Rosicrucianism (17th century), Freemasonry of the High Grades, the Hermetic Order of the Golden Dawn (19th century), modern Hermeticism (Manly P. Hall and other 20th century authors). Today, working with the Corpus Hermeticum and the Emerald Tablet remains a serious path of Western esoteric study: it requires patient reading, contemplative meditation, sustained study. The seven hermetic principles (mentalism, correspondence, vibration, polarity, rhythm, cause-effect, gender) of the famous Kybalion (1908) — though probably not authentic ancient hermetic — synthesise the tradition popularly accessible.