According to Chapter 30, what is the unavoidable duty of a saint like Sai, and how does he support his followers?

Chapter 30 clearly states that the primary and unavoidable task for saints is the uplifting of their devotees. The text emphasizes this point by saying, 'The task of uplifting one's own devotees is always unavoidable for saints,' and that even for Sai, the 'Acharya (teacher) of the assembly of saints,' this duty is inescapable. The chapter further elaborates on how Sai provides support by knowing the innermost desires of His devotees and being the one capable of fulfilling them. It also assures that 'Even if everyone abandons us, Sai does not forsake us,' and He is the sole 'giver of peace' to a troubled mind that remembers Him.