In A.S. Byatt's novel "Possession," the theme of metamorphosis is explored as a reflection of humanity's connection to the animal world. The characters engage in a quest for knowledge and understanding, which reveals deeper truths about their own identities and relationships. By depicting transformations, the story illustrates how individuals navigate their personal journeys amidst the complexities of love and discovery.

The quote highlights the idea that these transformations serve as riddles, suggesting that through our own changes, we acknowledge our inherent ties to nature and its creatures. This concept underlines the characters' experiences, showing that their struggles and growth are not only personal but also universal, connecting them to the broader essence of existence within the animal kingdom.