Bro, Poseidon is upset that you blinded his son, Polythemus.
But you can avoid it IF you go through this TINY strait. I'd like it if you didn't die.
BRO! IF YOU SACRIFICE A RAM, A BULL, AND A GREAT BUCK BOAR, POSEIDON MAY SPARE YOU!
"Great captain, a fair wind and the honey lights of home are all you seek. But anguish lies ahead; the god who thunders on the land prepares it, not to be shaken from your track, implacable, in rancor for the son whose eye you blinded." (Homer 1129)
You're going to be the only one who survives this trip though. Everyone is gonna die.
"One narrow strait may take you through his blows: denial of yourself, restraint of your shipmates." (Homer 1129)
Also there are a bunch of young men in your home who want to marry your wife. And your son left.
Your life sucks. But you'll die a peaceful death at least.
Tiresias tells Odysseus how he can appease Poseidon and his rage by sacrifice.
Everythings all good!
"But if you raid the beeves, I see destruction for ship and crew. Though you survive alone, bereft of all companions, lost for years, under strange sail shall you come home, to find your own house filled with trouble: insolent men eating your livestock as they court your lady." (Homer 1129)
Tiresias tells Odysseus of the men that want to marry his wife and kill his son.
Odysseus is kinda freaked out by the prophecy that was just foretold to him.