What is the significance of Kakasaheb's story as described in the introduction of Chapter 51, and what spiritual principle does it illustrate?

According to the introduction of Chapter 51, the story of how Kakasaheb first came to and was established in Shirdi is highly significant. While his other stories are well-known, this particular account was previously unknown to many. The chapter explains that his arrival was not by chance but was due to a deep bond from past lives, referred to as 'rinanubandh'. This narrative is presented to illustrate a key spiritual principle mentioned in Chapter 51: that it is through the merits of past lives that one obtains the grace of the Supreme Lord, which in turn leads to the profound experience of meeting a Sadguru and strengthening one's spiritual bliss.