What does Chapter 15 reveal about who receives Sai's 'darshan' and how he responds to devotees?

Chapter 15 begins by stating that only those whose immense merits have borne fruit are able to attain the vision, or 'darshan,' of Sai, which helps them overcome afflictions and achieve the supreme goal. The chapter then elaborates on the dynamic between Sai and his devotees. It explains that the chapter will describe how Sai, being pleased by the prayers of loving devotees, grants them his vision. This is illustrated through the analogy of a mother cat who, despite initial annoyance, cannot resist the persistent love of her kittens and ultimately provides them with nourishing milk. This suggests that while merit may play a role, persistent, loving devotion is the key to pleasing the Guru and receiving his grace, as detailed in Chapter 15.