In Hindu epics, avatars play crucial roles in the cosmic struggle between good and evil. They embody divine principles, manifesting on Earth to restore dharma (cosmic order) and combat adharma (chaos or unrighteousness). Heroes like Rama and Krishna exemplify virtues, often depicting the challenges they face against malevolent forces, thereby symbolizing the eternal fight against darkness in the universe. This divine intervention serves as a reminder of hope and the inherent potential for righteousness within human beings.