What does Chapter 30 say is the fundamental duty of a saint, and how does Sai Baba fulfill this role?

Chapter 30 explicitly states that "The task of uplifting one's own devotees is always unavoidable for saints." It emphasizes that this is a core responsibility that cannot be shirked, and it positions Sai Baba as the "Acharya (teacher) of the assembly of saints," for whom this duty is also "inescapable." The chapter provides several examples of how He fulfills this role: His darshan dispels fear, He removes calamities, He knows and fulfills His devotees' heart's desires, and holding His feet leads to the dissolution of all sins. When a devotee remembers Him during difficulties, He alone is the "giver of peace." This demonstrates His complete commitment to the welfare and spiritual upliftment of His followers.