What motivated the author to write this book, and what does Chapter 40 say pleases God the most?

Chapter 40 reveals that the author's primary motivation was a strong desire to describe Sai Baba's deeds, believing that doing so would destroy impurities and sins. The text presents a profound insight, stating that while Hari (God) is pleased with His own praise, He loves it even more when someone sings the praises of His devotees. The chapter notes that this statement is supported by the Bhavishyottara Purana. Therefore, the creation of the book is framed as an act that is supremely pleasing to God, as it focuses on describing the qualities and glories of His beloved devotee, Sai Baba.