What metaphors are used in A Mercy by Toni Morrison?

In the first chapter, Florens talks a great deal about shoes. She mentions shoes and how she did not enjoyed walking barefoot since she was a young child. The shoes are used here as a metaphor for wealth since it becomes clear that only the rich could afford to buy new shoes. The rest had to resolve to wearing the shoes thrown away by their masters or by someone much wealthier than them.