Chapter 40 mentions a specific reason why the author felt compelled to write about Sai's deeds. What is this reason, and what authority does he cite to support it?

The author's motivation, as revealed in Chapter 40, stems from a strong desire that "by describing all such deeds, impurities (sins) would be destroyed." The chapter goes on to make a profound theological point: God (Hari) Himself is pleased, and even more so than praise of Himself, He loves it when someone sings the praises of His devotees. To substantiate this claim and address any potential doubt from listeners, the author directs them to the Bhavishyottara Purana. According to Chapter 40, this ancient text contains a statement from Tripurari (Shiva) that confirms this very principle, lending scriptural weight to the act of glorifying a saint like Sai Baba.