Hermes Trismegistus

A syncretic figure combining the Greek Hermes with the Egyptian Thoth, representing ultimate wisdom. The foundation of Hermeticism and alchemy.
The Meaning of Hermes Trismegistus
Hermes Trismegistus ("Thrice-Great Hermes") was not a character from classical mythology but a syncretic figure who emerged from the blending of the Greek god Hermes and the Egyptian god Thoth. Both were gods of writing, magic, and wisdom, and their merger created a legendary sage credited with founding alchemy, astrology, and theurgy.
The Hermetic texts — a collection of philosophical and magical writings from the early centuries CE — were attributed to Hermes Trismegistus. These texts blended Greek philosophy with Egyptian religious thought and profoundly influenced Western esotericism, from medieval alchemy to Renaissance magic to Freemasonry.
The famous phrase "As above, so below" — the idea that the macrocosm of the universe is reflected in the microcosm of the individual — comes from the Hermetic tradition. The term "hermetically sealed" originally referred to a seal made using alchemical techniques attributed to Hermes Trismegistus.
Symbols
Fun Fact
"Hermetically sealed" originally meant sealed with the magical techniques of Hermes Trismegistus — now it simply means airtight.
Words We Inherited
English words and phrases that trace back to this myth. See our full guide to English words from Greek mythology.
Explore Further
Hermeticism
💭 conceptPhilosophy
A syncretic philosophical and spiritual tradition attributed to the legendary sage Hermes Trismegistus
Hermetic
💭 conceptLanguage and alchemy
An English adjective meaning airtight or sealed, and also relating to esoteric or occult knowledge, both senses deriving from Hermes through different mythological traditions
Neoplatonism
💭 conceptPhilosophy
A late antique philosophical system teaching that all reality emanates from a transcendent, ineffable One
Techne
💭 conceptThe knowledge of how to make and do things
The systematic art of making — the knowledge possessed by craftsmen, doctors, poets, and generals that transforms raw material into something purposeful.
Divination
💭 conceptReligion
The practice of seeking knowledge of the future or hidden things through divine communication
Enthousiasmos
💭 conceptReligion and Inspiration
The state of being possessed by a god, the original meaning of divine inspiration in Greek religion.
Tantalum
💭 conceptChemistry and mythology
A chemical element named after King Tantalus of Greek mythology because of the element's tantalising inability to absorb acids, just as Tantalus could never reach the water and fruit surrounding him
Pythagoreanism
💭 conceptPhilosophy
A philosophical and religious movement founded by Pythagoras centred on mathematics, harmony, and the soul
Orphic Mysteries
💭 conceptreligion, afterlife
An initiatory religious tradition attributed to the mythical poet Orpheus, teaching reincarnation, ritual purity, and liberation of the soul through sacred texts and ascetic practices.
Minoan Culture
💭 conceptHistory
The Bronze Age civilisation of Crete that preceded and profoundly influenced Greek mythology and religion
Nous
💭 conceptPhilosophy and Mind
The Greek concept of pure intellect or mind, the highest faculty of the soul and the organizing principle of the cosmos.
Titanium
💭 conceptChemistry and mythology
A chemical element named after the Titans of Greek mythology to reflect its exceptional strength, discovered in 1791 and now essential to aerospace and medical engineering