How does Chapter 4 elevate Sai Baba to the status of the Supreme Divinity, and what philosophical concepts are used?

Chapter 4 transitions from discussing saints in general to identifying Sai Baba as the Supreme Godhead. The text asserts that He who brings joy to the world is the Inner Self and the Supreme God, directly equating Him with the Guru and the Joy-giving Shankar. To describe His divine nature, the chapter employs deep philosophical concepts. It states that He is eternal, non-dual, and beyond the limitations of place, time, or object. The text further emphasizes His incomprehensibility by noting that the four levels of speech—Para, Pashyanti, Madhyama, and Vaikhari—fail to describe Him, and that the Vedas resorted to the phrase 'Neti-Neti' (Not this, Not this) in their attempt to define Him.