What is the root cause of being trapped in the cycle of birth and death (Samsara), according to the provided text?

The source material from Chapter 37 identifies the root cause of being trapped in the eternal cycle of worldly existence, or Samsara. The primary cause is a deluded sense of separation from the divine. The text states that when a person, due to ignorance, believes "Parabrahman is different from me; I am not that, I am something else," they create a knowledge of difference. It is this perception of duality and separation that subjects the individual to the endless cycle where death follows birth and rebirth follows death.