How does Chapter 4 of the Sai Satcharitra describe Sai's divine nature and the challenge of defining Him?

In Chapter 4, Sai is equated with the Supreme Divinity. He is described as the Inner Self who brings joy to the world, the Supreme God, the Guru, and Shankar. This divine being is presented as eternal, non-dual, and beyond all limitations of place, time, or object. The chapter emphasizes the inadequacy of human language to capture His essence, stating that the four levels of speech (Para, Pashyanti, Madhyama, and Vaikhari) become exhausted in trying to describe Him. Ultimately, as the text notes, even the Vedas had to resort to the phrase 'Neti-Neti' (Not this, Not this) to signify His boundless nature.