In the book "My Sister's Keeper" by Jodi Picoult, the question of what age you are when you reach Heaven arises, sparking a profound exploration of life, death, and the afterlife. This inquiry reflects the characters' struggles with loss and their relationships, particularly surrounding the concept of innocence and how it relates to the age at which people are confronted with mortality.

The characters' experiences and emotions highlight the complexities of grief and the desire to find comfort in a definitive understanding of life after death. Asking about the age in Heaven serves as a metaphor for the innocence lost and the peace sought in the face of tragedy, showing how deeply these themes resonate in the narrative.