Chapter 4 presents Sai as the Supreme Divinity. How does the text elaborate on this divine nature and the challenge of describing it?

Chapter 4 elevates Sai to the status of Supreme Divinity by stating that He is the Inner Self, the Supreme God, the Guru, and the Joy-giving Shankar who brings joy to the world. This divine being is described as the object of ultimate love, eternal, non-dual, and beyond all limitations of place, time, or object. The text highlights the profound difficulty in describing this divinity, noting that the four levels of speech (Para, Pashyanti, Madhyama, and Vaikhari) become exhausted in the attempt. It concludes by mentioning that even the Vedas failed to define Him, resorting to the expression 'Neti-Neti' ('Not this, Not this'), underscoring His transcendent nature.