Based on the introduction to Chapter 21, what qualities make a spiritual narration effective and meaningful?

The beginning of Chapter 21 outlines the characteristics of a powerful spiritual narration, emphasizing its effect on the audience. An effective story is one where the listener sways upon hearing it and the hair on their body stands on end. The text suggests that narrations are futile if the listeners are not delighted, if their throats do not choke up with emotion, and if tears of love and joy do not flow from their eyes. This indicates that the true value of a spiritual account, like the stories of Sai Baba, lies in its ability to evoke a deep emotional, physical, and devotional response.