In "The Glass Castle," Jeannette Walls shares her life story, emphasizing that everyone faces challenges regardless of their external circumstances. She illustrates that those who appear to lead perfect lives often hide their struggles and secrets behind a facade of success and happiness. This observation serves as a reminder that nobody is exempt from difficulties, and it's crucial to recognize the complexity of people's lives.

By expressing this sentiment, Walls invites readers to understand the hidden realities that many endure. Her narrative underscores the importance of empathy and compassion, reminding us that appearances can be deceiving and that everyone has their own battles, no matter how perfect their life may seem on the surface.