How does Chapter 15 describe the dynamic of prayer and reward between Sai and His devotees?

Chapter 15 frames the dynamic between Sai and his devotees as one of active prayer leading to divine reward. The chapter's stated purpose is to describe "the prayer of loving devotees to Sai" and then detail how Sai, "being pleased, grants them His vision." This is not a passive process. The analogy of the kittens persistently clinging to the mother cat, despite her initial annoyance, until her milk flows, is central to this theme. As Chapter 15 illustrates, the devotee's role is to maintain loving persistence and faith. This sincere effort is what pleases the Guru, Sai, who then bestows the ultimate reward of His vision and grace, much like the mother cat finally yields to her kittens' love.