What does Chapter 37 teach about the concepts of death, heaven, and the cycle of rebirth?

According to Chapter 37, what people call 'death' is simply when something that came from the unmanifest into a manifest form returns to the unmanifest. The true 'nooses of death' are identified as unrighteousness, ignorance, anger, and hatred. The chapter further explains that the cycle of death and rebirth, or Samsara, eternally follows anyone who maintains a sense of difference, believing 'Parabrahman is different from me.' As for heaven, the text dismisses the conventional idea of it as a place of sensual enjoyment, questioning its use if it lacks the chanting of God's name. The true heavenly state is described as the Vairaj, or the Cosmic Being, which is a state free from all grief, disease, and fear.