Based on Chapter 51, what is the significance of Kakasaheb's story and his connection to Shirdi?

Chapter 51 introduces the story of Kakasaheb as a significant narrative that is not widely known. It promises to reveal the "marvelous account of how Kakasaheb was established in Shirdi." The text frames this connection not as a random event, but as a result of a deep bond from past lives, referred to as 'rinanubandh'. As explained in Chapter 51, meeting a Sadguru like Sai is a consequence of the merits of past lives and the grace of the Supreme Lord, which in turn strengthens the bliss of the disciple. Thus, Kakasaheb's story is presented as an example of this profound spiritual principle.