Why does homer use foreshadowing when he has Tiresias tells Odysseus his future?

Homer uses foreshadowing through Tiresias's prophecy to create suspense and anticipation for Odysseus's journey. By revealing critical events that will occur, it heightens the stakes of Odysseus's quest and emphasizes the themes of fate and free will. This technique also reinforces the idea that knowledge of the future can influence present actions, as Odysseus must navigate challenges while bearing the weight of Tiresias's warnings. Ultimately, it enhances the epic's narrative depth and character development.