What are the primary narratives and teachings presented in Chapter 15?

Chapter 15 of the Shri Sai Satcharitra begins with a prayer to the listeners, urging them to be receptive like an ocean accepting all rivers. The chapter then uses a powerful analogy of a mother cat and her kittens to illustrate the nature of a devotee's love for the Guru. It explains how the kittens' persistence melts the mother's heart, causing her to shower them with affection and milk, much like a devotee's attachment to Sai's feet earns His grace. As detailed in Chapter 15, this section also introduces a story about Das Ganu, explaining why he performed kirtans in simple attire after Sai Baba questioned his elaborate dress in Shirdi.