Ouroboros meaning
The ouroboros means a cycle with nothing outside it: a serpent eating its own tail. The image is Egyptian; the Greek name and the line “the all is one” come from Greco-Egyptian alchemy.
The serpent that eats itself, and so has no outside.
The name. Greek oura, tail, and bora, food — the thing that eats its tail.
Where it comes from
Serpents biting their own tails appear in New Kingdom Egypt. The Greek name, and the line ἕν τὸ πᾶν — “the all is one” — belong to Greco-Egyptian alchemy, preserved in the Chrysopoeia of Cleopatra. From there the figure passes into medieval Latin alchemy and, much later, into Jung’s reading of a psyche that regulates itself.
Alchemy
The work that returns
It is the opus circulatorium: dissolve and coagulate as one motion, not two steps. The matter feeds on its own residue. Volatility leaves and comes back. Read this way, the serpent is not futility. It is a closed apparatus.
Hermetic
A world with no remainder
“The all is one” is a claim about sufficiency. The cosmos is not propped up from elsewhere. What leaves the circle is still the circle. Later Hermetic readers set it beside the lemniscate, but the lemniscate is a mathematician’s sign that borrowed the feeling, not the ancestor.
Near this
- InfinityA typesetter’s sign that escaped into metaphysics.
- Yin and yangTwo phases of one motion, each carrying the seed of the other.
- MercuryThe go-between. Metal, planet, principle, and a god who travels.
- EnsōOne brushstroke, usually left unfinished.
- PhoenixA bird that burns and is the same bird after.
- JörmungandrThe serpent around the world of men. Not the alchemical tail-eater.
Sources
- Chrysopoeia of Cleopatra (Greco-Egyptian alchemical papyrus), the named ouroboros with ἕν τὸ πᾶν
- Herodotus does not describe this figure; later Hermetic and alchemical readers do
Named when the entry depends on a text, a date, or a standard. Catalog numbers are not invented.
Your margin
Private. It stays in this browser and never joins the canon.
symbol.wiki, edited as Sigilla. Last reviewed 2 October 2026. A reading of public tradition, not a ruling.