According to the introduction of Chapter 21, what is the intended effect of Baba's stories on the listener, and what makes a narration worthwhile?

The beginning of Chapter 21 sets a distinct tone by describing the ideal reception of Sai Baba's stories. A narration is considered effective only if it produces a profound psycho-spiritual effect on the listener. The text poetically questions the value of words if "the listener does not sway upon hearing them, if the hair on the body does not stand on end." According to Chapter 21, a narration is deemed futile if "the listeners are not delighted, the throat does not choke up with emotion, and tears of love and joy do not flow from the eyes." This highlights that the purpose of these stories is not mere entertainment or intellectual learning but to evoke deep devotion and spiritual transformation.