What does the author promise to narrate in Chapter 18, and what is the requested disposition of the listeners?

In Chapter 18, the author, Hemadpant, promises to shift from the previous chapter's topic to a more personal one. He states he will now narrate a 'sweet tale' with accuracy about the grace that Baba bestowed upon him personally. For this narration, he makes a specific request of his audience. Chapter 18 emphasizes that 'for their own benefit, the listeners should hear it with a calm mind.' It further notes that when a listener is attentive, the speaker feels enthusiasm, and a 'spring of love overflows in the heart,' leading to mutual joy.