Can you explain the concept of 'rinanubandh' as it is introduced in Chapter 51 in relation to Kakasaheb?

In Chapter 51 of the Sai Satcharita, the concept of 'rinanubandh', or the bond from past lives, is introduced as the fundamental reason for Kakasaheb's connection to Shirdi and Sai Baba. The text explicitly states that the chapter will narrate the 'entire history of his bond of past lives (rinanubandh) with Shirdi.' This implies that a person's meeting with a Sadguru is not a random event but is preordained by karmic ties from previous births. The chapter suggests that it is due to these past merits and connections that one receives the grace of the Supreme Lord, which then manifests as the opportunity to meet a Sadguru like Sai Baba.