What specific event or realization mentioned in Chapter 40 served as the primary inspiration for writing the Shri Sai Satcharitra?

Chapter 40 reveals the specific inspiration behind the creation of the Shri Sai Satcharitra. The author recounts the image of Sai Baba, a saint, setting up a grinding stone in Shirdi, spreading His legs, and grinding grain. This powerful act filled the author's mind with wonder and sparked a strong desire to describe all of Sai's deeds. The core belief, as stated in this chapter, was that by narrating these divine acts, one's impurities and sins would be destroyed. The chapter further supports this by noting that God Himself is pleased and loves it when someone sings the praises of His devotees, a concept supported by the Bhavishyottara Purana.