Describe the philosophical explanation of birth and death provided in the text, especially in relation to great saints like Sai Baba.

According to the philosophy detailed in Chapter 43, birth is defined as the union of the body and senses, while death is their separation. For an ordinary person, death is an inseparable characteristic attached to birth. However, for enlightened beings and avatars like Sai Baba, who incarnate by their own will for the welfare of devotees, birth and death are considered false imaginations. The text explains that Sai Baba is the complete Supreme Brahman, devoid of bodily impulses, and therefore the concepts of birth and death do not apply to him. For such beings, who have already turned their body to ashes through spiritual realization, death is like dust and holds no fear.