According to the preview given in the text, what specific narratives can a reader expect to find within Chapter 51?

Chapter 51 of the Sai Satcharitra explicitly outlines the main stories it will cover. After a philosophical introduction, the author states, "Now, at the start of this new chapter, I shall narrate the marvelous account of how Kakasaheb was established in Shirdi." The text promises to delve into the entire history of Kakasaheb's past-life bond ('rinanubandh') with Shirdi and his strong relationship with Sai. In addition to this primary focus on Kakasaheb, Chapter 51 also mentions that it will describe three other stories of three devotees, which are intended to "soothe the hearts of the listeners."