Can you explain the story of Chand Patil and how he was connected to Sai Baba's arrival in Shirdi, as recounted in Chapter 39?

As detailed in Chapter 39, Chand Patil, a meritorious man from Dhupkheda in the Nizam State, was the first person to encounter Sai Baba. The meeting occurred when Patil had lost his horse and found Sai sitting under a mango tree. Although the full story is only referenced, the chapter mentions how Sai helped him find his horse and made him smoke a chillum. Subsequently, Sai Baba arrived in Shirdi accompanying the wedding party of Chand Patil's nephew. The chapter emphasizes, however, that Patil was merely an instrument, as Sai's arrival was a self-willed act for the upliftment of his devotees.