Lethe

Lethe was the River of Forgetfulness in the underworld — the dead drank from it to erase all memory of their mortal lives before reincarnation.
The Story of Lethe
Souls destined for reincarnation were required to drink from Lethe, forgetting everything they had known and experienced. In Plato's Republic, souls choose their next life and then drink from Lethe before being reborn. The Orphic initiates were taught to avoid Lethe and drink instead from the spring of Mnemosyne (Memory), preserving their awareness through the cycle of rebirth. The concept resonated powerfully — forgetting as a prerequisite for beginning again.
Symbols
Fun Fact
The Greek word for "truth" — aletheia — literally means "un-forgetting" (a-lethe), implying truth is what survives Lethe's waters.
Words We Inherited
English words and phrases that trace back to this myth. See our full guide to English words from Greek mythology.
Explore Further
Lethe
⚡ godGoddess of forgetfulness and oblivion
Lethe was the goddess and river of forgetting — the dead drank from her waters to erase their mortal memories before being reborn.
Lēthē
💭 conceptmythology, philosophy
Forgetfulness or oblivion — the river or force of forgetting in the underworld, and the philosophical problem of how the soul loses or retains its knowledge.
Elysian Fields
🏛 placeafterlife
Paradise reserved for heroes and the virtuous dead, located at the western edge of the world or in the depths of the Underworld.
Underworld
🏛 placeRealm of the dead
The Underworld was the vast subterranean realm where all mortal souls went after death — a geography of rivers, fields, and judges more detailed than any other mythological afterlife.
Acheron
🏛 placeRiver of Woe in the underworld
The Acheron was the River of Woe in the underworld, which the dead had to cross — in some traditions it was Charon's river rather than the Styx.
Hades
🏛 placeUnderworld geography
The vast underground kingdom of the dead ruled by the god Hades and his queen Persephone
Elysium
🏛 placeParadise for the blessed dead
The paradise at the edge of the world where heroes and the virtuous spent eternity in perfect happiness. Also called the Elysian Fields or the Isles of the Blessed.
Oracle of the Dead
🏛 placeunderworld, prophecy
The Oracle of the Dead at Ephyra in Epirus where the living consulted ghosts of the deceased through elaborate underground rituals.
Pieria
🏛 placeSacred geography
The region at the foot of Mount Olympus sacred to the Muses, who were sometimes called the Pierides
Acheron River
🏛 placeUnderworld geography
The river of woe in the Greek underworld across which the dead were ferried by Charon
Lerna
🏛 placeSwamp of the Hydra
Lerna was a marshy region near Argos, famed as the lair of the Lernaean Hydra and believed to contain one of the entrances to the underworld.
Asphodel Fields
🏛 placeUnderworld geography
The vast grey meadow in the underworld where the majority of ordinary souls wandered after death