What motivates Cyclops to ask Poseidon to interfere with Odysseus’s journey home?

Answer:

The Cyclops, Polyphemus, is motivated by a desire for revenge after Odysseus blinds him and then taunts him from his ship. Angered by the loss of his sight and the insult to his pride when Odysseus reveals his true identity, Polyphemus calls upon his father, Poseidon, to curse Odysseus so that he may never reach home, or if he does, that he arrive late, alone, and to a house full of trouble.