The role of prophecies in various mythologies is to provide insight, warning, or guidance regarding future events. Prophetic visions often serve as narrative devices that shape heroes’ journeys, prompting characters to confront their destinies and moral choices. For example, in Greek mythology, oracles like the Oracle of Delphi deliver messages from the gods, influencing key actions in myths. This theme underscores the interplay of fate and free will, illustrating how knowledge of the future can profoundly impact characters' decisions and the unfolding of events.