Ouroboros: The Serpent Eating Its Tail, from Egypt to Alchemy
The ouroboros is a serpent or dragon that bites its own tail. Egypt, Greek alchemy, the Norse Jörmungandr, Jung and Kekulé: origins, the meaning of the cycle, anecdotes and caution.
Key points
| Name | From the Greek ouroboros, “that which devours its tail” |
|---|---|
| Form | A serpent (or dragon) forming a circle by biting its tail |
| Earliest examples | Enigmatic book of the underworld, on the shrine of Tutankhamun (14th century BC) |
| Greek alchemy | The Chrysopoeia of Cleopatra: “The One is the All” |
| Norse | Jörmungandr, the serpent that encircles the world |
| Meaning | Cycle, eternity, return, all in one |
| Famous anecdote | Kekulé's dream and the structure of benzene, a disputed account |
What is the ouroboros?
The ouroboros is a serpent, sometimes a dragon, that forms a circle by biting its own tail. The word is Greek: oura (tail) and boros (devouring). The image expresses a closed cycle: what ends begins again, and what feeds on itself sustains itself.
It is one of the oldest signs of infinity, predating the mathematical sign ∞ (adopted in the 17th century). It is often drawn as a simple circle, sometimes with one half light and one half dark.
Ancient Egypt
The oldest known examples are found in Egypt. In an illustrated funerary text (the “Enigmatic Book of the Underworld”), painted on the gilded shrine of Tutankhamun (14th century BC), a serpent encircles the head and feet of a god. It is read as an image of the envelope of the cosmos and of the cycle of solar rebirth.
The exact reading of this image is debated: some see protective serpents, others renewal or the limits of the world.
The Greeks and alchemy
The ouroboros spread in the Hellenistic period, in the alchemical circles of Alexandria. A famous manuscript attributed to Cleopatra the Alchemist (copied in the Middle Ages from older texts) draws it with the Greek formula hen to pan, “the All is One”. The serpent there expresses the unity of matter that transforms itself.
In the Timaeus, Plato describes a first spherical living being that feeds on its own waste: it is often seen as a philosophical forerunner of the ouroboros, although the link is not established. Gnostics and medieval alchemists later took up the motif.
Jörmungandr and other serpents
| Tradition | Figure | Remark |
|---|---|---|
| Norse | Jörmungandr, serpent of Midgard | In Snorri, it encircles all lands and bites its tail |
| Egypt | Mehen, protective serpent | Coiled around gods; not always in a closed circle |
| Gnosticism | Cosmic serpent | An image of the whole, closed upon itself |
| Hinduism | Shesha, serpent of Vishnu | Coiled, but does not bite its tail |
It is therefore not a single symbol transmitted intact, but a family of images of circular serpents.
Recognising the image and its variants
- The simple circle: a single serpent, its head meeting its tail.
- The double ouroboros: two serpents chasing each other, sometimes one light and one dark.
- The dragon-ouroboros, common in medieval alchemy and in fantasy jewellery.
- The ouroboros with a Greek motto: “the All is One”.
Do not confuse it with the caduceus (two serpents around a staff, emblem of Hermes) or the rod of Asclepius (a single serpent, symbol of medicine): these are other symbols.
Jung, Kekulé and the anecdotes
Carl Jung saw in the ouroboros a symbol of the inner cycle and of a psychic totality at the origin of consciousness. This is a theoretical reading, specific to his psychology.
It is also said that the chemist August Kekulé discovered the cyclical structure of benzene in 1865 after dreaming of a serpent biting its tail. The story comes from his speech of 1890; historians of science doubt its accuracy and see it as a staged narrative. It is a fine story, and it is best presented as such.
Modern readings
- The cycle of the seasons, of days, of lives.
- Eternal return, or return to oneself after a detour.
- A habit that feeds on itself (for example a thought that loops): the symbol can also be a warning.
- The unity of the whole, in a philosophical or alchemical reading.
- An image of sustainability: a circular economy that reuses its resources.
The same image is therefore positive (renewal) or negative (an endless loop). It is for the viewer to choose their reading.
Wearing it or choosing it
As a ring, a bracelet or a pendant, the ouroboros is a motif valued for its elegance and its perfect circle. It is often associated with the idea of renewal, eternity and, sometimes, commitment. No effect has been demonstrated.
For the tarot, compare it with The World and The Wheel of Fortune. For related symbols: the phoenix, the dragon and the spiral. See our rings and bracelets.
Frequently asked questions
What does the ouroboros symbolise?
The cycle, eternity and the unity of the whole. Depending on the context, it can also signal a loop with no way out.
Where does the ouroboros come from?
The earliest known examples are Egyptian (14th century BC). The Greeks and the alchemists later took it up.
Is the ouroboros Norse?
The serpent Jörmungandr of Scandinavian myth encircles the world and, in Snorri, bites its tail. It is a related figure, not an identical one.
Did Kekulé really dream of an ouroboros?
The anecdote comes from him, in 1890, but some historians consider it embellished. It remains famous.
Is it a disturbing symbol?
No, it is a symbol of cycles. It can be positive (renewal) or negative (a loop), depending on the reading.
Also read
The meanings mentioned belong to tradition and symbolism. They are neither promises of results nor medical advice. Back to Symbol dictionary.