Ouroboros (Greek ????????? , from ????????? ???? “tail-devouring snake”, also spelled Uroboros in English pronounced /??r?b?r?s/ or /?j??ro??b?r?s/ ), is an ancient symbol depicting a serpent or dragon swallowing its own tail and forming a circle . The Ouroboros often represents self-reflexivity or cyclicality, especially in the sense of something constantly