Based on this text, what is the true definition of 'heaven' and why is it considered less important than devotion?

Chapter 37 of the Shri Sai Satcharitra describes 'heaven' not as a physical place, but as a state of being—the 'Vairaj' or the Cosmic Self. This divine state is characterized as being free from disease, worry, sorrow, hunger, thirst, and the fear of death. However, the chapter questions the desire for this heavenly abode if it is attained through difficult sacrifices but lacks the remembrance and chanting of God's name, such as 'Govinda.' It dismisses such a heaven as merely a place for sensual enjoyment, concluding that a place without devotion is of little use and, in terms of pleasure, no different from any other realm.