How does this text describe the concepts of birth and death, particularly in relation to a perfected being like Sai Baba?

According to Chapter 43, birth is simply the union of the body and senses, while death is their separation. For great saints who incarnate for the welfare of their devotees, these concepts are considered 'false imaginations.' The text specifically describes Sai Samarth as a 'mass of bliss' and the 'complete Supreme Brahman,' for whom birth and death are irrelevant. It posits that since the world is an illusion from the standpoint of Brahman, there is no real body consciousness for such a being. Therefore, the idea of death for someone who has already metaphorically 'turned the body to ashes' is meaningless, as death is like 'dust before him.'