What is the primary theme and analogy used in Chapter 15 to describe the devotee's relationship with Sai?

Chapter 15 begins with humble salutations and a plea from the author to the listeners, comparing them to a vast ocean. The chapter's primary theme, as stated within the text, is to describe how Sai responds to the prayers of loving devotees and grants them His vision. To illustrate this, the chapter uses a detailed analogy of a mother cat and her kittens. The kittens persistently and lovingly swarm their mother, who may initially seem annoyed but eventually relents and provides milk. As explained in Chapter 15, this metaphor demonstrates how a devotee's loving and persistent faith can move Sai to grant His grace and darshan, ultimately destroying the fear of worldly existence for the sincere.