How does Chapter 37 define the concepts of 'death' and 'heaven' from a spiritual perspective?

According to Chapter 37, death is not just a physical event but a state caused by spiritual failings. The text identifies Adharma (unrighteousness), ignorance, anger, and hatred as the 'nooses of death'. True heaven is similarly redefined, not as a place of sensual enjoyment, but as the Vairaj, or the Cosmic Being itself. This divine heavenly state, as explained in Chapter 37, is a condition free from disease, worry, sorrow, hunger, thirst, and the fear of old age or death. It is a state where the soul can move about completely fearless, which is far superior to a heaven lacking the remembrance of the Lord.