According to Chapter 52, why was the Sai Satcharitra written, and who was chosen to be its author?

Chapter 52 of Sai Satcharitra explains that the book, referred to as "Sai Leela," was created to remember and document the experiences Sai Baba granted to His devotees while He was in His physical body. The text describes itself as a supremely holy work containing the stories of His true character. A key point mentioned in this chapter is that Sai Baba Himself chose Hemadpant to be the author. It is specifically highlighted that Hemadpant, who considered himself devoid of specialized knowledge and learning, was selected for this divine task, with Sai holding his hand and causing this true life story to be written, showing it was the Guru's grace at work.