Eternal lives are a common theme in many religious and spiritual beliefs, representing an existence that goes beyond the physical world and continues indefinitely. Some synonyms for eternal lives include everlasting life, immortality, and eternal existence. These words all convey a sense of permanence and timelessness, suggesting that the soul or spirit lives on beyond death. Other synonyms for eternal lives could include eternal soul, eternal spirit, or endless life. While these terms may differ slightly, they all convey the idea of a life that goes on forever, giving hope and comfort to those who believe in them.