What does Chapter 39 reveal about the purpose behind Sai's incarnation and his characteristics in his early years?

As detailed in Chapter 39, the primary purpose of Sai's incarnation was the upliftment of his devotees. The text emphasizes that he came to Shirdi of his own accord, driven by a great concern for them. It specifically mentions his mission to uplift the 'dull-witted, the fallen, and the poor,' as well as simple, faithful people who lacked formal religious practices. This chapter also provides a glimpse into his early life, stating that at the age of eighteen, he had a habit of solitude and would sleep anywhere without fear, a practice rooted in his ability to see the Lord everywhere.