What metaphors are used in Richard Brautigan's Trout Fishing in America ; the Pill Versus the Springhill Mine Disaster ; and, in Watermelon Sugar by Richard Brautigan?

Trout Fishing in America is a shape-shifting metaphor that Brautigan uses for the names of just about everything from people, to principles, objects, and consciousness itself. Events unfold organically as the narrator daydreams about, looks for, and indulges in trout fishing which becomes the central metaphor and organizing theme of the book.