Chapter 4 discusses both the general reason for saints' incarnations and the specific divinity of Sai. How does the text connect the role of a saint to the concept of Supreme Divinity?

Chapter 4 of the Sai Satcharitra first establishes the conditions for a saint's incarnation—times of moral and spiritual decay—and their selfless mission to restore religion. It then equates this role with the highest divinity by describing Sai as the Supreme God. The text posits that the Guru, who brings joy, is the Inner Self and is the same as the Joy-giving Shankar. This connects the functional role of a saint with the ultimate reality. The chapter emphasizes that this Supreme Divinity, embodied by Sai, is eternal, non-dual, and beyond all limitations. Even the Vedas, in their attempt to describe Him, could only resort to 'Neti-Neti' (Not this, Not this), showing that a saint's form is a manifestation of an indescribable absolute.