What does Denny learn about the importance of the struggle in racing and life?

Denny learns that struggles often lead to growth and strength, both in racing and in life. Throughout the story, he faces numerous challenges, from personal losses to professional setbacks. Each struggle provides him with valuable lessons and resilience that shape his character and abilities. In racing, the ability to navigate difficult situations can make the difference between winning and losing; similarly, in life, overcoming adversity fosters personal development and helps individuals emerge stronger.

By acknowledging that struggles are integral to success, Denny understands that they provide opportunities for learning and improvement. This perspective allows him to embrace challenges rather than shy away from them, viewing obstacles as necessary parts of his journey rather than deterrents. This lesson reinforces the idea that perseverance in the face of hardship is what ultimately leads to fulfillment and achievement.