What is the spiritual definition of 'death' and 'heaven' presented in Chapter 37?

Chapter 37 presents a spiritual interpretation of death and heaven. It suggests that 'death' isn't just a physical event but is metaphorically described as being caught in the 'nooses' of unrighteousness (Adharma), ignorance, anger, and hatred. To enter the 'heavenly world' is to cross over these negative qualities entirely. This heavenly state, as detailed in this chapter, is not a place but a state of being, the Cosmic Self-form itself, which is free from mental grief, disease, worry, and the fear of old age. In this state, the soul moves about completely fearless.