Iry dndn was one of the benevolent demons of ancient Egypt, a mystical entity defying easy classification as human, animal, or deity. The ancient Egyptians regarded serpents not only as a zoological symbol warding off evil but also as embodiments of sacred power utilized against their adversaries. Iry dndn was a male demon as most of the demons in ancient Egypt, epitomized the benevolent side of these ancient mystical creatures, whose name means literally “the angry one" or “the one who cuts", he is represented in many forms such as a standing god adorned with the distinctive 3tf crown, human headed serpent or a coiled serpent positioned on a pedestal. Each manifestation held significance, encapsulating the multifaceted nature of this beneficent serpent in ancient Egyptian beliefs.
During the Graeco-Roman periods, his significant figure appeared at the temple of Edfou, playing diverse roles evident in various texts referencing his name. He assumed an important responsibility in fortifying and preserving the sanctity of Hr Bhdty, warding off the encroachment of chaotic forces and potential transgressors symbolized by malevolent serpents. His role is paramount in defending the temple and its portals, poised to obliterate any intruders seeking access to the sacred confines of the temple. Beyond his role as guardians, he actively participated in purification and offering rituals within the temple, that emphasized his dual nature, combining protection and guardianship with a role in the spiritual and religious ceremonies that maintained the sanctity of the temple.