According to Chapter 28, what is the fundamental nature of Sai Baba and his role as a Sadguru?

Chapter 28 explains that Sai Baba is not separate from anyone but dwells within all beings, pervading everything from Brahma to the smallest insect. This chapter describes him as a true Sadguru, proficient in both the divine word (Shabda-Brahma) and the nature of the Supreme Being (Para-Brahman). Unlike a father who gives a physical body subject to birth and death, the Guru, with great compassion, removes the cycle of both birth and death. The text emphasizes that being established in one's true nature and having the ability to impart teachings to disciples are the essential qualities of a Sadguru, which Sai possessed.