According to the introduction of Chapter 21, what qualities make a spiritual narration effective and how does this relate to Baba's teachings?

The introductory verses of Chapter 21 describe the hallmarks of an effective spiritual narration. A speaker's words are considered successful only if the listener is moved, if their hair stands on end, their throat chokes with emotion, and tears of love and joy flow. A narration is deemed futile if it doesn't delight the listeners. The author then connects this to Sai Baba, stating, "Baba’s speech is captivating, His method of instruction is extraordinary; His actions at every step are innovative." This suggests that Baba's life and teachings, as recounted in the Satcharitra, naturally possess the very qualities that, according to Chapter 21, make for a powerful and transformative spiritual story.