Hell, in many religious traditions, the abode, usually beneath the earth, of the unredeemed dead or the spirits of the damned. In its archaic sense, the term hell refers to the underworld, a deep pit or distant land of shadows where the dead are gathered. From the underworld come dreams, ghosts, and demons, and in its most terrible precincts sinners pay—some say eternally—the penalty for their crimes. The underworld is often imagined as a place of punishment rather than merely of darkness and decomposition because of the widespread belief that a moral universe requires judgment and retribution—crime must not pay. More broadly, hell figures in religious cosmologies as the opposite of heaven, the nadir of the cosmos, and the land where God is not. In world literature the journey to hell is a perennial motif of hero legends and quest stories, and hell itself is the preeminent symbol of evil, alienation, and despair.