What does Chapter 21 say about the qualities of a good listener when hearing Baba's stories?

At the beginning of Chapter 21, the author emphasizes that the listener's emotional and spiritual engagement is crucial for the stories of Sai Baba to have an effect. The narration is considered successful only if the listener is deeply moved. The text poetically describes this reaction, stating that the speaker's words are in vain if "the listener does not sway upon hearing them" and if "the hair on the body does not stand on end." Furthermore, a narration is deemed futile if the listeners are not delighted, their throats do not choke with emotion, and "tears of love and joy do not flow from the eyes." This highlights the captivating power of Baba's speech and extraordinary methods of instruction.