What is Enzo's greatest wish regarding his afterlife?

Enzo's greatest wish regarding his afterlife is to become a human. Throughout the narrative, Enzo expresses a deep understanding of human emotions, experiences, and the complexity of life that goes beyond that of a typical dog. He believes that by becoming human, he would be able to fully engage in the world, communicate with his beloved owner Denny more effectively, and experience the nuances of life that he observes but cannot participate in as a dog. This desire reflects his journey of self-discovery and his longing to connect more profoundly with the people he cares about, illustrating themes of empathy, love, and the search for identity.