What does Chapter 39 say about the reason for Sai's incarnation and the type of people he came to help?

According to the narrative in Chapter 39, Sai Baba took his incarnation and came to Shirdi out of a "great concern for the upliftment of his devotees." The text explicitly states that he came of his own accord, with Chand Patil being merely an instrument in his arrival. The chapter poses a rhetorical question, asking who else but Sai would uplift the "dull-witted, the fallen, and the poor," as well as "those without vows, penance, or sacraments." The key characteristic of these people was their simple and faithful nature, highlighting Sai's mission to save those who were humble and devout, regardless of their station or spiritual discipline.