What does Chapter 39 reveal about the deeper, spiritual purpose behind Sai Baba's incarnation and arrival in Shirdi?

While the narrative includes Chand Patil, Chapter 39 of the Shri Sai Satcharitra clarifies that Patil was "merely an instrument." The text states that Sai's arrival was not a coincidence but a deliberate act driven by his "great concern for the upliftment of his devotees." He took on this incarnation and came to Shirdi of his own accord. The chapter poses a rhetorical question, asking who else but Sai would uplift the "dull-witted, the fallen, and the poor, those without vows, penance, or sacraments—simple and faithful people," highlighting his mission to save all souls, regardless of their station or past deeds.