What metaphors are used in What We Cannot Speak About We Must Pass Over in Silence by John Edgar Wideman?

A metaphor emphasizing the narrator's restricted, prisoner-like existence is used to describe his home. He lives in a building in the "bottom of somebody's pocket. Sunlight never touches its bricks". His life is restricted, like a prison he's chosen to seal himself within. Fewer and fewer visits paid or received. He likens himself to a prisoner about to be executed: After he has finished looking at himself in the mirror, he switches off the light, letting "the merciful hood drop over the prisoner's head".