Final answer:
In Greek and Roman mythology, souls drink from the river Lethe to forget their past lives before being reincarnated.
Step-by-step explanation:
Souls drinking from the river Lethe is a concept derived from Greek and Roman mythology. According to these beliefs, when souls are about to be reincarnated, they drink from the river Lethe to forget their past lives before returning to the world. Souls drinking from the river Lethe is a concept derived from Greek and Roman mythology. According to these beliefs, when souls are about to be reincarnated, they drink from the river Lethe to forget their past lives before returning to the world. In Greek mythology, Lethe was one of the five rivers in the Underworld, and drinking from it was believed to wash away the memories of the past. This idea is found in various ancient sources, including the works of Vergil and Plato.In Greek mythology, Lethe was one of the five rivers in the Underworld, and drinking from it was believed to wash away the memories of the past. This idea is found in various ancient sources, including the works of Vergil and Plato.