In "The Glass Castle," Jeannette Walls reflects on the struggles of a character who has faced significant hardships. The character's "broken wing" symbolizes the challenges and misfortunes that can leave a lasting impact on one's outlook on life. The notion of having a lifetime of eating roadkill suggests a life filled with poor choices and unfortunate events, leading to a sense of bitterness and ingratitude.

The quote implies that constant adversity can erode a creature's spirit and foster negative emotions. It highlights the importance of empathy, suggesting that understanding someone's background and struggles can help foster compassion rather than judgment. The acknowledgment of hard luck reminds us that every individual carries burdens that shape their behavior and attitude toward life and others.