 As the play progresses, Caliban refers to Miranda as his "mistress", saying that it was Miranda who explained to him what the moon and stars are.Furthermore, some critics do acknowledge that while the language in this particular speech is stronger than expected for Miranda, it is far weaker than Prospero's form of address would be given the situation.Her lines spoken at the end of Act V, Scene I are the inspiration for the title of the novel "Brave New World".