This video provides a journey into the complexities of the human brain, unraveling the enigma of self-perception and consciousness. Discover the vital role played by a small brain structure known as the anterior precuneus (aPCu), and learn about the separate brain systems that govern our physical and narrative selves. As we delve into these fascinating findings, we also touch on the strange experiences reported by patients when this area is stimulated, offering intriguing insights into the very essence of human identity.