In what way is Sai Baba identified with the Supreme Godhead at the conclusion of Chapter 4?

The latter part of Chapter 4 elevates Sai Baba to the status of the Supreme Divinity. The text posits that He who brings joy to the world is the Inner Self and the Supreme God, identifying this being as the Guru and as the Joy-giving Shankar. Chapter 4 describes this divinity as eternal, non-dual, and beyond all limitations of place, time, or object. The chapter culminates by stating that even the Vedas could not describe Him, ultimately resorting to the phrase 'Neti-Neti' ('Not this, Not this'), signifying that Sai's true, divine nature is ultimately beyond human description and comprehension.