Heroes in mythology are defined as individuals who undertake extraordinary journeys, often characterized by courage, strength, and moral integrity. They typically face trials and adversities that test their limits, as seen in figures like Hercules or King Arthur. Heroes often embody the values and aspirations of their cultures, serving as role models. Their narratives, which frequently explore themes of self-sacrifice, redemption, and the quest for knowledge, reveal the profound impact of individual actions on the greater community.