According to Chapter 37, what is the root cause of the cycle of birth and death, and what are the 'nooses of death'?

Chapter 37 explains that the perpetual cycle of worldly existence, or Samsara, where death follows birth and rebirth follows death, is driven by a fundamental ignorance. The primary cause is the deluded knowledge of difference, where an individual believes, "Parabrahman is different from me; I am not that." This sense of separation from the ultimate reality is what subjects a soul to the cycle. The text also identifies what it calls the 'nooses of death,' which are Adharma (unrighteousness), ignorance, anger, and hatred. It is only by entirely crossing beyond these negative qualities that one can transcend this cycle and enter the true heavenly state of unity with the Cosmic Being.