The quote highlights the hidden strength within individuals that often remains untapped until faced with challenging situations. It suggests that people might underestimate their resilience and capabilities until they are put to the test. Life's adversities can reveal a person’s true potential and strength of character, showing that we often have more power within us than we realize.

In Marian Keyes' book "Watermelon," this theme resonates as characters navigate personal struggles. They learn that confronting difficulties can lead to self-discovery and growth, demonstrating that hardship can be a catalyst for realizing one's true strength. Such experiences reinforce the idea that resilience is a fundamental aspect of the human spirit.