According to Chapter 23, what is the primary role of a Guru and why do saints incarnate on Earth?

Chapter 23 of the Sai Satcharitra explains that saints incarnate on this earth out of benevolence, specifically for the salvation of dull-witted souls, which is considered the grace of the Almighty. The text posits that loving devotion at the feet of the Guru is the only way to calm the calamities that arise from the soul's delusion. The role of the Guru is to act as an extraordinary master who guides the devotee out of ignorance. This is illustrated with the analogy of a master who finds a caged parrot and, by patting it with love and applying ointment to its eyes, helps it realize the wonder of freedom beyond its cage, much like a Guru frees a soul from its sensual attachments.