Can you explain the philosophical concepts of 'death' and 'heaven' as defined in Chapter 37?

Chapter 37 redefines both death and heaven from a spiritual perspective. 'Death' is described not as an end, but as a transition when something that has come into form from the unmanifest returns to the unmanifest. The true 'nooses of death' are identified as unrighteousness (Adharma), ignorance, anger, and hatred. Conversely, 'heaven' is not a geographical location but a state of being. It is the experience of the Virat (Cosmic) Self-form, a state free from mental grief, disease, worry, hunger, thirst, and the fear of death, where the soul moves about fearlessly. One enters this state by crossing beyond the aforementioned nooses of death.