Ouroboros Cataphractus

The ouroboros or uroboros () is an ancient

symbol A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship. Symbols allow people to go beyond what is known or seen by creating linkages between otherwise very different conc ...

depicting a serpent or dragon eating its own tail. The ouroboros entered Western tradition via ancient Egyptian iconography and the Greek magical tradition. It was adopted as a symbol in

Gnosticism Gnosticism (from grc, γνωστικός, gnōstikós, , 'having knowledge') is a collection of religious ideas and systems which coalesced in the late 1st century AD among Judaism, Jewish and Early Christianity, early Christian sects. These ...

and

Hermeticism Hermeticism, or Hermetism, is a philosophical system that is primarily based on the purported teachings of Hermes Trismegistus (a legendary Hellenistic combination of the Greek god Hermes and the Egyptian god Thoth). These teachings are containe ...

and most notably in

alchemy Alchemy (from Arabic: ''al-kīmiyā''; from Ancient Greek: χυμεία, ''khumeía'') is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practiced in China, India, the Muslim world ...

. The term derives , from ''oura'' 'tail' plus ''-boros'' '-eating'. The ''ouroboros'' is often interpreted as a symbol for eternal cyclic renewal or a cycle of life, death, and rebirth; the snake’s skin-sloughing symbolizes the transmigration of souls. The snake biting its own tail is a fertility symbol in some religions: the tail is a

phallic symbol A phallus is a penis (especially when erect), an object that resembles a penis, or a mimetic image of an erect penis. In art history a figure with an erect penis is described as ithyphallic. Any object that symbolically—or, more precisel ...

and the mouth is a