In Greek mythology, Cerberus, often referred to as the hound of Hades, is a multi-headed dog that guards the gates of the Underworld to prevent the dead from leaving. He was the offspring of the monsters Echidna and Typhon, and was usually described as having three heads, a serpent for a tail, and snakes protruding from his body. Cerberus is primarily known for his capture by Heracles, the last of Heracles' twelve labours.
Heracles, wearing his characteristic lion-skin, club in right hand, leash in left, presenting a three-headed Cerberus, snakes coiling from his snouts, necks and front paws, to a frightened Eurystheus hiding in a giant pot. Caeretan hydria (c. 530 BC) from Caere (Louvre E701).
Cerberus and Hades/Serapis. Heraklion Archaeological Museum, Crete, Greece.
Heracles, chain in left hand, his club laid aside, calms a two-headed Cerberus, which has a snake protruding from each of his heads, a mane down his necks and back, and a snake tail. Cerberus is emerging from a portico, which represents the palace of Hades in the underworld. Between them, a tree represents the sacred grove of Hades' wife Persephone. On the far left, Athena stands, left arm extended. Amphora (c. 525–510 BC) from Vulci (Louvre F204).
Athena, Heracles, and a two-headed Cerberus, with mane down his necks and back. Hermes (not shown in the photograph) stands to the left of Athena. An amphora (c. 575–525 BC) from Kameiros, Rhodes (Louvre A481).
The underworld, also known as the netherworld or hell, is the supernatural world of the dead in various religious traditions and myths, located below the world of the living. Chthonic is the technical adjective for things of the underworld.
The legs of the god Vishnu as the Cosmic Man depict earth and the seven realms of the Hindu underworld of Patala. The feet rest on cosmic serpent Shesha.