He is a storyteller. Antinous example helpful 1. He leaves out a great deal. Story has a meaning beyond the one intended by Antinous. Each telling of a story, because it has a particular motivation, is different from another.
Myth occurs at juncture of performance with tradition.
Anger of Achilles in Iliad best seen as an episode in the larger life-story, or hero myth, of Achilles. Thus speech starts out as example of what Achilles should do. Meleager lived in Calydon, a city in Aetolia in Northwestern Greece. Oineus neglected a sacrifice to Artemis, and in anger she sent a wild boar to ravage territory of Calydonians. Meleager gathered allies from a nearby city to fight the boar.