The implications of immortality in ancient myths encompass themes of eternal life, power, and the dilemmas it entails. Heroes and gods seeking immortality often confront the burden of endless existence, as exemplified by figures like Gilgamesh and Achilles. These narratives raise questions about the nature of life, death, and what it means to truly live. Immortal beings frequently grapple with isolation and the loss of loved ones, revealing paradoxes surrounding eternal life and highlighting the human desire for permanence amid the inevitable cycles of change.