Junо trаnsfоrms Cаllistо into а bear, and the text notes: "Her mouth / That Jupiter had kissed in his rapture / Was fanged jaws, like a torn open wound. / Then to empty her cries of their appeal / The goddess nipped off her speech. Instead of words / A shattering snarl burst from her throat." What does the text's specific emphasis on the silencing of Callisto's voice most directly reveal about Juno's punishment?