"Lila: An Inquiry Into Morals" is a philosophical novel by Robert M. Pirsig, published in 1991. It follows the journey of Phaedrus, the protagonist, as he travels on a boat down the Mississippi River while exploring complex ideas about morality, quality, and the nature of human experience. The narrative intertwines personal reflections with philosophical discussions, aiming to understand the principles that govern ethical behavior. The book serves as a sequel to Pirsig's earlier work, Zen and the Art of Motorcycle Maintenance, but focuses more on moral philosophy. Through dialogues and encounters with various characters, Phaedrus seeks to reconcile his past and develop a coherent framework for understanding values and ethics in a modern context.