The dead know things the living do not.
His journey would never end.
he smelt like poo
All that has happened to him on his way home from Troy.
He did not encounter this god in the Odyssey, he encountered ghosts of those who had died including the prophet/priest Tiresias, his mother who warned of the suitors and strife stirring in his absence, Agamemnon, of whose murder he now learned, who also warned him about the dangers of women among others.
He was magically turned into a human
That his mother died, and that suitors are after his wife.
His journey would never end.
Odysseus must visit the house of Hades to consult the spirit of the blind prophet Tiresias, who can provide him with important advice on how to navigate his journey home. The visit to the underworld also allows Odysseus to encounter other spirits, including his deceased mother, which adds emotional depth to his quest.
Elpenor; comrade of Odysseus. Teiresias; who Odysseus sought in Hades. Antikleia; the mother of Odysseus.
Odysseus does not venture into Hades, he merely speaks to the ghosts of the dead by a ritual.
Ajax would still not speak to Odysseus in Hades, as he was still angry at Odysseus over the battle for Achilles' armour.
These gods never met Odysseus.
he punishes the evil spirits?
nothing
he goes into hades or the underworld.
hades
Tiresias.