How does the beginning of Chapter 21 describe what makes a spiritual narration effective or 'captivating'?

The introduction to Chapter 21 sets a high standard for what constitutes an effective spiritual narration. It suggests that a speaker's words are in vain if the listener does not 'sway upon hearing them' or if 'the hair on the body does not stand on end.' The chapter describes narrations as futile if they fail to delight the listeners, cause the throat to choke with emotion, or bring tears of love and joy to the eyes. This part of Chapter 21 beautifully illustrates that the goal of such stories is not just to inform but to create a deep, emotional, and transformative experience for the audience, much like Baba's own captivating speech.