How does the author of the Sai Satcharitra describe his experience of writing the book, especially regarding inspiration from Sai Baba?

In Chapter 49, the author explains that he is merely an instrument for Sai Baba. He states that Sai Himself prompted him to start the Satcharita for the benefit of devotees and for the author's own self-interest. He elaborates that whenever he feels lazy or forgets a narrative, Sai provides the remembrance at the right time. The author feels that Sai manifests stories so unexpectedly that he must take up his pen to write. He concludes that the merciful Sainath entered his mind to get His own book written, making Sai both the composer and the writer of the work.