The River of Lethe

The River of Lethe is a great, rushing river that winds its way through The Realm of the Dead. When a soul has made peace with the life they lived in The Mortal Realm, and are prepared to be reborn, they enter the River. It cleanses them of all memories of their past life - loves, hates, grudges, whether they are Bound or Unbound, etcetera - and washes them toward The Well of Souls.

An ancient legend says a living Bound Mortal, who drinks the waters of the River, will become Unbound from their Tale.