What is the philosophical understanding of death presented in the Satcharita, particularly in relation to saints like Sai Baba?

Chapter 43 provides a deep philosophical perspective on life and death. It defines birth as the union of body and senses and death as their separation. However, for enlightened beings like Sai Baba, these concepts are considered false imaginations. The text posits that Sai Samarth is the complete Supreme Brahman, for whom birth and death do not apply as the physical body is merely an adjunct. His apparent 'death' is described as a voluntary act, a 'spontaneous play of Yoga,' where he chose to merge back into his unmanifest state. For such souls, who incarnate by their own will for the welfare of devotees, death is like dust before them.