What role does racing play in Denny's life?

Racing plays a significant role in Denny's life as it is not just a mere activity or profession for him; it represents a deep passion that serves as a vital connection between him and Enzo, his dog. Throughout the narrative, racing is portrayed as an integral part of Denny's identity and a means of expressing his values and emotions. It reflects his determination, resilience, and the lessons he learns about life, particularly in the face of adversity. The bond between Denny and Enzo is solidified through their shared experiences in racing, as Enzo observes and learns about human nature through Denny's passion. This connection illustrates how racing serves as a vehicle for Denny to navigate the complexities of his life and relationships, making it much more than just a hobby or source of income.