What does Chapter 37 identify as the root cause of the cycle of birth and death (Samsara)?

Chapter 37 explains that the endless cycle of birth and death, known as Samsara, is perpetuated by a fundamental ignorance and a sense of duality. A person who believes, 'Parabrahman is different from me; I am not that,' is deluded by ignorance and remains subject to this cycle, where death follows birth and rebirth follows death. This perception of being separate from the ultimate reality is the root cause of bondage. The path to liberation, as implied at the end of the provided text, is through understanding the 'science of the oneness of Brahman and the Self.' This involves realizing that the same divine principle pervades everything, from the creator down to a blade of grass, and overcoming the delusion of separateness.