How does the author of Chapter 24 describe the nature of Sai Baba's humor and its effect on his devotees?

The author of Chapter 24 provides a vivid description of Sai Baba's unique pedagogical style. It is noted that Baba's ways were extraordinary, as he would impress the essence of truth even through a simple joke. Unlike ordinary humor, which people might resent, Baba's humor was greatly loved and eagerly anticipated by his devotees. The chapter highlights that his jokes were effortless, novel, and natural, delivered with a smiling face and playful eyes. When combined with his gestures, the purpose of the teaching was immediately achieved and became indescribably sweet.