What specific theme is Chapter 15 stated to describe regarding Sai and his devotees?

The text explicitly states what Chapter 15 will focus on. According to the source material for this chapter, its primary purpose is to describe the prayers of loving devotees to Sai and, in turn, how Sai becomes pleased and grants them His vision, or darshan. To illustrate this dynamic, the chapter introduces the analogy of a mother cat who, despite initially growling, eventually yields to her kittens' persistent love and provides milk. This sets the stage for stories about how devotees' sincere and loving persistence is rewarded by Sai's grace, a central theme detailed in Chapter 15.