Mnemosyne shepherd, and Mnemosyne slept together for nine consecutive nights, thus conceiving the nine Muses. Mnemosyne also presided over a pool in Hades, counterpart to the river Lethe, according to a series of 4th-century BC Greek funerary inscriptions in dactylic hexameter. Dead souls drank from Lethe so they would not remember their past lives when reincarnated. In Orphism, the initiated were taught to instead drink from the Mnemosyne, the river of memory, which would stop the transmigration of the soul. Although she was categorized as one of the Titans in the "Theogony", Mnemosyne did not quite fit that distinction. Titans were
Titan (mythology) Titans generally, and the other moons of Saturn are named after individual titans, specifically Tethys, Phoebe, Rhea, Hyperion, and Iapetus. Astronomer William Henry Pickering claimed to discover another moon of Saturn which he named Themis, but this discovery was never confirmed, and the name Themis was given to an asteroid, 24 Themis. Asteroid 57 Mnemosyne was also named for a titan. A proto-planet Theia is hypothesized to have been involved in a collision in the early solar system, forming the Earth's moon. Titan (mythology) In Greek mythology, the Titans (Greek: , "Titán", , "Titânes") and Titanesses (or Titanides; Greek: ,