What is the stated purpose of Chapter 34 and how does the story of the Hadyavran serve that purpose?

The introduction of Chapter 34 explicitly states that its purpose is to continue the narration from the previous chapter on the greatness and glory of Udi, describing its qualities and characteristics further. The story of the boy with the bone-cyst, or Hadyavran, serves as a powerful illustration of this theme. By presenting a case where expert doctors and numerous medical treatments failed completely, the chapter sets up a scenario of absolute helplessness. The subsequent healing through the simple application of Sai's Udi, as narrated in Chapter 34, provides an experiential and wonderful account that demonstrates the supreme and miraculous power of the sacred ash.