Based on the teachings in Chapter 30, what should a devotee do when faced with difficulties, and what assurance does the chapter provide?

According to the guidance in Chapter 30, a devotee who is caught in difficulties should immediately remember Sai Nath and "run and reach" Him, placing their head at His feet. The chapter contains a plea to Sai to forget all offenses and remove the anxiety of the devotee. The core assurance provided is that Sai is the sole "giver of peace" to a troubled mind. As mentioned in the text, Sai is an "ocean of compassion" who knows the heart's desires of His devotees and is fully capable of fulfilling them. The chapter reinforces the idea that Sai never forsakes His followers, making Him the ultimate refuge.