What qualities define a powerful spiritual narration and an engaged listener, according to the beginning of Chapter 21?

The start of Chapter 21 beautifully defines the ideal dynamic between a narrator and a listener in a spiritual context. It suggests that a speaker's words are wasted if the listener isn't deeply moved. A successful narration is one where the listener sways upon hearing the words and the hair on their body stands on end. The chapter further elaborates that narrations are futile if the listeners are not delighted, their throats do not choke up with emotion, and tears of love and joy do not flow from their eyes. This passage from Chapter 21 underscores that the true measure of a spiritual story is its capacity to evoke a profound emotional and visceral response, signifying a true connection to the subject matter.