According to the teachings in Chapter 37, what is the root cause of being trapped in the cycle of birth and death?

The primary cause for being trapped in the eternal cycle of worldly existence, or Samsara, is a deluded mind and the ignorance of one's true nature. Chapter 37 states that the person who holds the knowledge of difference—believing 'Parabrahman is different from me; I am not that'—is always subject to death and rebirth. This sense of separation from the ultimate reality is the core delusion. This is compounded by what the text calls the 'nooses of death': unrighteousness (Adharma), ignorance, anger, and hatred. Overcoming this cycle requires realizing the science of the oneness of Brahman and the Self, understanding that the same divine principle pervades all of creation.