Step-by-step explanation:
In "Gulliver's Travels" by Jonathan Swift, Gulliver becomes disenchanted with the notion of immortality when he encounters the Struldbrugs in the land of Luggnagg. The Struldbrugs are individuals who are born with the appearance of eternal youth, which initially seems like a desirable condition.
However, Gulliver soon learns the harsh reality of their immortality. While they don't physically age, they continue to live on, becoming progressively more miserable and burdened with the infirmities of old age. They are trapped in their decaying bodies, witnessing the world change around them, losing loved ones, and experiencing increasing physical and emotional suffering.
Gulliver's encounter with the Struldbrugs illustrates the idea that immortality, as he observes it in this context, can be a curse rather than a blessing. It serves as a cautionary tale about the limitations and drawbacks of living forever, emphasizing the importance of mortality and the human experience of aging, growth, and change. This experience disenchants Gulliver with the idea of immortality, making him appreciate the natural course of life and death.