In what way is Sai Baba's divine nature described in Chapter 4 of the Satcharitra?

Chapter 4 of the Shri Sai Satcharitra describes Sai Baba as the Supreme Divinity itself. The text explicitly states that He who brings joy to the world is the Inner Self and the Supreme God. It equates Him with the Guru and with Shankar, identifying Him as the object of ultimate love who is eternal and non-dual. This chapter emphasizes that His nature is beyond all limitations of place, time, or object. So profound is His essence that the four levels of speech cannot describe Him, and the Vedas, in their attempt, could only resort to saying "Not this, Not this" (Neti-Neti).