What is the overall introduction and purpose of Chapter 51 of the Shri Sai Satcharita?

Chapter 51 of the Shri Sai Satcharita begins with invocations and praises for Sai Baba, comparing his grace to sandalwood soothing heat and rain bringing joy. As mentioned in the chapter, its purpose is twofold. First, it serves to purify the listener and speaker through the act of narration itself. Second, it sets the stage for upcoming stories by recapping the previous chapter's discussion on destroying delusion and then promising to narrate the 'marvelous account of how Kakasaheb was established in Shirdi,' along with the stories of three other devotees that will soothe the hearts of the listeners.