What is the author's view on effective storytelling, as mentioned at the beginning of Chapter 21?

At the start of Chapter 21, the author reflects on the power and purpose of narration. He suggests that a speaker's words are in vain if the listener is not emotionally moved. The true measure of a successful narration, according to the chapter, is its ability to delight the listeners, cause their hair to stand on end, make their throats choke up with emotion, and bring tears of love and joy to their eyes. Any narration that fails to evoke this deep, heartfelt response is considered futile. This sets a high standard for the stories of Sai Baba that follow, implying they are meant to be transformative experiences for the reader.