Heroes in mythology often face significant perils such as monstrous creatures, temptations, and treachery. These challenges test their courage, resilience, and moral fiber. Common adversaries include gods, rival heroes, and fearsome beasts. The trials often serve a dual purpose: to demonstrate the hero's virtues and to highlight the cosmic balance between good and evil. Ultimately, these perils are integral to the hero’s journey, shaping their character and leading them toward a greater destiny.