Symbols:
Each of the rivers that interact with the realm of the dead is in one way or another related to knowledge and purification. We may not know the versatility of Hades, but by discovering each of the rivers, we learn all the complexity, duality, and communion with Zeus.
Four rivers fall off the hands of Hades and mix with Tartar:
Styx - it is along this river that the souls of the dead are transported to the other side of the kingdom of Hades, where they were to live forever and rest, followed by Hades, the giver of goods and riches (dotos)
Leta is a river of oblivion, which balances; under it, Hades is the receiving (λ)
Phlegeton is a river of fire, where my father was located