How does Chapter 4 describe the divine nature of Sai Baba and his relationship to the ultimate reality?

In Chapter 4, Sai Baba is equated with the Supreme Divinity itself. The text explains that He who brings joy to the world is the Inner Self and the Supreme God, identifying this being as the Guru and the Joy-giving Shankar. This chapter posits that Sai is this eternal, non-dual reality, who is beyond any division of place, time, or object. The profound and indescribable nature of this divinity is highlighted by mentioning that the four levels of speech (Para, Pashyanti, Madhyama, and Vaikhari) cannot fully describe Him, and even the Vedas ultimately resorted to the expression "Not this, Not this" (Neti-Neti) in their attempt to define Him.