What leads to the continuous cycle of birth and death, known as Samsara?

The text explains that the perpetual cycle of worldly existence, or Samsara, is driven by a fundamental misunderstanding of one's true nature. As detailed in Chapter 37, a person who holds the belief that Parabrahman (the Supreme Reality) is different from themselves—thinking "I am not that, I am something else"—is always subject to death. This knowledge of difference, or duality, is what causes the cycle where death follows birth and rebirth follows death, turning eternally behind the individual.