How does Chapter 4 describe Sai Baba in relation to the Supreme Divinity, and what does it say about the limits of language in describing Him?

Chapter 4 elevates Sai to the status of the Supreme Divinity, stating, "He who is God is the Guru, and He is the Joy-giving Shankar." This passage identifies Sai as the eternal, non-dual Inner Self who is beyond all limitations of place, time, or object. The chapter then profoundly explores the inadequacy of human language to capture His essence. It notes that the four levels of speech—Para, Pashyanti, Madhyama, and Vaikhari—become exhausted in trying to describe Him. As further evidence of this limitation, Chapter 4 mentions that the Vedas themselves ultimately failed in their descriptions, resorting to the famous negative theology of "Not this, Not this" (Neti-Neti) to point toward His ineffable nature.