What does Chapter 51 say about Kakasaheb's connection to Shirdi and Sai Baba?

Chapter 51 serves as an introduction to the story of Kakasaheb's relationship with Shirdi. It promises to narrate the "marvelous account of how Kakasaheb was established in Shirdi." The text suggests this connection is not accidental but is a result of a deep bond from past lives, referred to as 'rinanubandh'. While it mentions that Kakasaheb's stories were widely known among people, the specific details of how he first arrived in Shirdi were not common knowledge. As laid out in Chapter 51, meeting a Sadguru like Sai is a result of merits from past lives, leading to a firm relationship and the bliss of the disciple.