The text mentions the 'nooses of death.' What are they, and how can one overcome them to achieve a 'heavenly state'?

According to Chapter 37, the true 'nooses of death' are not physical but spiritual: adharma (unrighteousness), ignorance, anger, and hatred. To enter the heavenly world, one must cross these entirely. This heavenly state is not a separate place but is described as the Vairaj (the Cosmic Being) itself. It is a state free from mental grief, disease, worry, sorrow, hunger, thirst, and the fear of old age or death, where the soul can move about fearlessly.