Describe the philosophical understanding of birth and death presented in the text, particularly as it applies to Sai Baba.

According to the teachings in Chapter 43, birth is defined as the union of the body and senses, while death is their separation. However, for a divine being like Sai Baba, these concepts are considered false imaginations. The text explains that Sai Samarth is the complete Supreme Brahman, for whom birth and death are not applicable. Because he is a 'mass of bliss' and devoid of bodily impulses, the question of death for his body is meaningless. His physical form is viewed merely as an adjunct, and for one who has spiritually turned the body to ashes even before it falls, death is like dust. This perspective reframes physical existence and its end for the enlightened.