Based on the provided excerpts from Chapter 30, what is the primary duty of a saint, and how does Sai Baba fulfill this role?

According to the verses in Chapter 30, the task of uplifting one's own devotees is described as an unavoidable and inescapable duty for saints. Sai Baba, who is called the "Acharya (teacher) of the assembly of saints," perfectly embodies this role. He provides a path that is "fearless and obstacle-free" for those who have held His feet. The chapter states that when a devotee remembers Sai Nath while caught in difficulties, He alone is the giver of peace to the troubled mind. His grace is so potent that it can bestow "inconceivable great power" and the profound "wealth of discrimination between Self and non-Self," signifying that His help is both worldly and deeply spiritual.