Poseidon wants Odysseus to understand what it is like to suffer, just as Odysseus has made his son Polyphemus suffer.
Because Polyphemus is Poseidon's son, and Poseidon wants Odysseus to never make it home.
Because Odysseus blinded Poseidon's son Polyphemus, so then Polyphemus made a prayer to his father (Poseidon) so then Poseidon cursed Odysseus with a hard journey home with many [arils.
Odysseus implies that he doesn't need the gods. Poseidon wants to prove to him that he does.
Poseidon. and he's not against him, he's just mad at him because he never thanks the gods, so he wants Odysseus to suffer.
He gives the the gift to Odysseus because he is the cousin of Poseidon and he is mad at him for some reason and he wants to show of that he is better than him!
Poseidon is very upset with Odysseus so he captures him and his partner and they have to figure out how to defeat his monster. The goddess Athena tells them how to defeat it... She says you have to grab the doubled headed snake (monster) and keep holding onto it as it transforms into a lion and all sorts of creatures..... Odysseus and his partner defeat it!
Shortly after leaving Troy on his way home Odysseus has a run in with the Cyclops Poylphemus - who wants to eat most of Odysseus' crew. Odysseus isn't happy about this, he plays a trick on Polyphemus which ends up with Polyphemus blind and Odysseus escaping with most of his crew uneaten. The trouble is: Polyphemus is the son of Poseidon, and Poseidon is the god of the ocean. If you are plannning a major sea voyage, it is a good idea not to annoy the god of the ocean before you start. The god of the ocean can make big trouble for people on ships. Poseidon is the biggest influence on the route Odysseus takes home - Poseidon doesn't want Odysseus to arrive, and does everything in his power to make things difficult for him. If you are a god of the ocean, and the chap you don't like is on a ship - there is a lot you can do to annoy him.
He wants to overthrow Poseidon and Zeus.
She loves Odysseus and wants to keep him on her island, but Zeus wants her to let Odysseus go.
he wants power
Calypso believes she has given everything a man could ever want - a home, love, food, everything. But, she cannot fulfill the nostalgia Odysseus feels, and that is why she cannot understand. She will even make him a god, and every man will ditch his home and family for that.
He wants Odysseus to be her lover and stay with her forever.