The concept of dualism in Zoroastrian mythology is primarily illustrated through the figures of Ahura Mazda and Angra Mainyu. Ahura Mazda represents light, truth, and goodness, while Angra Mainyu embodies darkness, chaos, and evil. This eternal struggle between the two forces influences human choices and the nature of the universe. Zoroastrian teachings emphasize the importance of free will, urging individuals to align with Ahura Mazda’s teachings for spiritual progress. Thus, the dualism reflects the battle between good and evil in the quest for cosmic order.