How is the nature of a saint's life and consciousness described, particularly regarding their relationship with the physical body and the world?

According to the teachings in Chapter 43, saints are free from the six-fold changes and emotions, always remaining in an unmanifest state in the bliss of Brahman. They are described as being constantly alert in their true form, with the feeling of duality completely vanished. The physical body is merely an adjunct, and they have no real consciousness of it or its potential illnesses from past karma. Their manifestation in a physical form is a willful act, a 'spontaneous play of Yoga,' undertaken for the sole desire of their devotees' welfare and salvation. For them, life is not a modification of the body in the ordinary sense, as they have already turned the body to ashes even before it falls.