In Jodi Picoult's novel "My Sister's Keeper," the author uses the metaphor of a jewel to illustrate the transformative power of adversity. The quote suggests that, much like a jewel, which is formed through intense heat and pressure, individuals can emerge stronger and more valuable from difficult experiences. This notion highlights the resilience of the human spirit and the idea that challenges can lead to personal growth and beauty.

The statement draws a parallel between the natural process of gem formation and the emotional or psychological trials that people endure. It emphasizes that while the journey may be tough, the outcome can reveal a person’s true worth and potential, much like how a rough rock can become a prized jewel through perseverance and fortitude.