The scriptures seem to de-emphasize the pursuit of heaven. What is the reasoning behind this view?

The text provides a detailed perspective on this matter. Chapter 37 questions the desire for a heavenly abode, describing it as merely a place for sensual enjoyment where the remembrance of God may be absent. It argues that the pleasure found in heaven is no different in essence from earthly pleasures, comparing the revelry of Indra to a donkey wallowing in a dung-heap. The crucial point made is that heaven is temporary; one falls from it after their merit is exhausted. Therefore, the scripture suggests that birth on earth is of profound importance, as even a momentary life dedicated to God can lead to a permanent state of fearlessness.