The Satcharita says Sai Baba is beyond birth and death. How does it explain this?

According to Chapter 43, Sai Baba is considered beyond birth and death because He is identified as the complete Supreme Brahman, a mass of bliss who does not know the birth of a body. For one who has realized the truth of Brahman, the world is an illusion, and there is no consciousness of the body. The text explains that what might appear as physical death for saints is merely a defect of vision, much like an eclipse obscuring the sun. Since Sai is described as the Supreme Brahman and is devoid of bodily impulses, the very concepts of birth or death are rendered inapplicable to Him.