What metaphors are used in Desiree's Baby by Kate Chopin?

Beyond issues of race and racism, the whole story can be seen as a metaphor for identity. The circumstances of her childhood strip Désirée of any true identity of her own. Her adoption by the Valmondes gives her a new identity, and indeed, she "grew to be beautiful and gentle, affectionate and sincere,—the idol of Valmonde." However, Désirée's true lack of identity never ceases to exist. When Armand wants to marry her, Monsieur Valmonde reminds the suitor that "she was nameless." Armand's insistence that her heritage doesn't matter, that he will give her his name, enforces the idea that once again a new identity is being imposed upon Désirée, even if it does not fit her.