In Roman and Greek mythologies, visions and prophecies are often portrayed as glimpses into the divine will. Characters like Oracle at Delphi serve as intermediaries, revealing foreknowledge through cryptic messages meant to guide or alter the course of human affairs. These prophetic utterances underscore the inevitability of fate while illustrating the tension between free will and destiny. The portrayal of prophecies reflects the belief that the gods engage with humanity, shaping events through signs, which adds layers of significance to moral and ethical choices faced by the characters.