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

Chapter 52 explains that the book, also called "Sai Leela," was created to remember and preserve the experiences that Sai Baba gave to His devotees while He was in His physical body. The text is described as a supremely holy collection of stories about His true character. As detailed in the chapter, Sai Baba specifically chose Hemadpant to be the author. It is highlighted that Hemadpant was devoid of specialized knowledge and learning, but Sai held his hand, inspiring him and causing this true life story to be written for the benefit of all.