What is the primary subject matter and theme presented in Chapter 15 of the Shri Sai Satcharitra?

Chapter 15 of the Shri Sai Satcharitra primarily focuses on the relationship between Sai Baba and his devotees, and the benefits of listening to sacred stories. The chapter begins with a humble prayer and a plea to the listeners, who are compared to a vast ocean that accepts all rivers. It then outlines the rewards for those who listen with faith, which include attaining devotion, liberation, happiness, and peace. As detailed in Chapter 15, the central theme is how Sai, pleased by the persistent love of his followers, grants them his divine vision. This concept is beautifully illustrated through an analogy of a mother cat and her kittens.