Vishnu in Ocean with Ananta Sesha, the "Thousand-Headed" Snake

Depicted here with fifteen, in the Vaishnava tradition Ananta Sesha is said to have a thousand heads, on which he carries the planets.

Image of Satguru Sivaya Subramuniyaswami
Hell is not eternal. Nor is there a Satan who tempts man and opposes God's power, though there are devilish beings called asuras, immature souls caught in the abyss of deception and hurtfulness.
—Gurudeva