According to Chapter 52, why was the 'Sai Leela' book written and who did Sai choose to write it?

As detailed in Chapter 52, the book 'Sai Leela', also referred to as the Satcharitra, was written to remember and record the experiences Sai Baba gave to His devotees while He was in His body. The text highlights that Sai Himself chose Hemadpant for this task, despite Hemadpant considering himself to be devoid of specialized knowledge and learning. It's mentioned that Sai held his hand and caused this true life story to be written, with the inspiration for the book coming after Sai departed to His own abode, based on the profound stories He had previously narrated.