Can you describe the 'divine heavenly state' as explained in Chapter 37 and contrast it with the idea of a heaven of sensual pleasure?

Certainly. Chapter 37 describes the true 'divine heavenly state' not as a location but as a state of being, referring to it as the 'Vairaj' or the 'Virat (Cosmic) Self-form.' This state is defined by what it lacks: there is no disease, worry, illness, sorrow, hunger, thirst, or fear of old age and death. It is a condition where the soul is completely fearless and there is no duality. In stark contrast, Chapter 37 critiques the pursuit of a heavenly home that is merely 'a place for sensual enjoyment.' It questions the value of such a place if it lacks the chanting of God's name, suggesting that in terms of sensual pleasure, there is little difference between heaven and hell, making the spiritual state of being far superior.