According to Chapter 37, what is the nature of the true heavenly world, and what qualities define it?

As described in Chapter 37, the true heavenly world is not a physical place but the state of realizing the Vairaj, the Cosmic Being. It is beholding the Virat (Cosmic) Self-form, which is inherently free from mental grief. This divine heavenly state is defined by what it lacks: there is no cause for disease, no worry, illness, or sorrow. In this state, no one is afflicted by hunger or thirst, nor are they distressed by the fear of old age. Chapter 37 emphasizes that it is a realm without the fear of death and without the duality of 'do's and don'ts', where the soul can move about completely fearless.