What metaphors are used in Notes of a Native Son by James Baldwin?

Baldwin mentions Harlem on numerous occasions and sets the neighbor apart. Harlem was the place where Baldwin and his parents grew up and lived and Baldwin was able to see in time how Harlem became stuck in time while the other parts of the city seemed to move forward and advance. Because of this, Harlem can be seen as a metaphor used to make reference to the condition of the blacks in America. Just like Harlem failed to develop, the black community remained largely unchanged in time, without being able to solve its problems.