Miller also uses Tituba to explore the themes of guilt and innocence. Tituba is clearly guilty of participating in the witch trials, but she is also innocent in the sense that she is a victim of her own circumstances. Miller wants readers to question the nature of guilt and innocence and to consider the extent to which people are responsible for their own actions.
Ultimately, Miller wants readers to understand that Tituba is a complex and tragic character who is both a victim and a villain. He wants readers to see the humanity in Tituba and to understand the forces that led her to make the choices she did.