In Odysseus' journey into the Underworld, he encountered many spirits who in some way contributed to the great things that happened during his time. Among the many people, Odysseus encountered Teiresias the prophet, who foretold Odysseus' troubles during his journey home and also his death. Odysseus also encountered his mother who told him about what was happening at home with Penelope, the suitors and his father. Odysseus also encountered Agamemnon who spoke of his death that was plotted and carried out by Aegisthus and wife Clytaemnestra..

I believe that the significance of Odysseus' journey into the Underworld was to help him in the future when it came time to make decisions that would benefit or hinder his going home. With Teiresias' prophecy, Odysseus had to listen carefully so that he would be able to get home with little trouble. Dealing with his mother's talk...