The overarching themes in mythological interpretations of dreams often revolve around transformation, prophecy, and self-discovery. Dreams serve as a bridge between the conscious and unconscious realms, carrying messages from the divine or the psyche. They allow individuals to confront their fears, desires, and aspirations through allegorical representations. Myths often depict characters who find meaning or guidance within their dreams, reflecting the idea that dreams can lead to profound insight or serve as warnings about future events.