From a philosophical standpoint, what does Chapter 37 identify as the primary cause for a soul being trapped in the cycle of worldly existence (Samsara)?

Chapter 37 delves into the root cause of being trapped in Samsara, the eternal cycle of birth, death, and rebirth. The text states that this cycle is a consequence of a soul deluded by ignorance. This delusion manifests as the 'knowledge of difference,' the deep-seated belief that 'Parabrahman is different from me; I am not that, I am something else.' It is this perception of being separate from the ultimate reality, Brahman, that subjects an individual to the relentless turning of the wheel of worldly existence, where death follows birth and rebirth follows death.