In "The Bone Clocks" by David Mitchell, the cyclical nature of the seasons is portrayed as a metaphor for the different phases of life. Spring symbolizes renewal and growth, bringing new opportunities and fresh beginnings. Summer represents the peak of life, where experiences and accomplishments multiply, representing the fullness of existence.

As autumn arrives, it signifies a time of reflection and transition, where the abundance of summer begins to wane, and things are shed or taken away. Finally, winter introduces a sense of division and stillness, marking the end of cycles and the contemplation of what has passed. Together, these seasonal changes reflect the complexities and rhythms of human experience throughout life.