Themes of perseverance shape the narrative arcs of heroes by illustrating their struggles against overwhelming odds. Heroes like Odysseus or Gilgamesh often face internal and external challenges that test their resolve and character. These stories emphasize resilience and growth, showing that true heroism lies in not giving up, regardless of setbacks. This portrayal inspires audiences by suggesting that enduring hardships leads to personal transformation, culminating in a heroic journey marked by eventual triumph and enlightenment.