Chapter 39 suggests that Chand Patil was merely an instrument. What was the deeper purpose for Sai Baba's incarnation and arrival in Shirdi as explained in this chapter?

Chapter 39 delves into the profound reason for Sai Baba's presence in Shirdi, positing that his arrival was not a mere coincidence. The text explicitly states that 'Chand Patil was merely an instrument' and that Sai came to Shirdi 'of his own accord.' The primary motivation for this incarnation, as described in this chapter, was his 'great concern for the upliftment of his devotees.' Sai's mission was specifically to uplift those who were simple and faithful, including the 'dull-witted, the fallen, and the poor,' and those who lacked formal religious practices like vows or penance. His presence was a direct act of grace for such individuals.