What does this chapter reveal about the significance of the sacred ash, or Udi?

Chapter 35 highlights the renowned significance of the sacred ash, known as Udi. The text explicitly states that the fame of the Udi is indicated through the experience of a devotee named Balaji Nevasakar. As mentioned in this chapter, this story, along with an account of how a serpent was treated with love as if it were Sai himself, serves to illustrate the profound nature of devotion and Sai's grace, which is often associated with the Udi. The author notes that they are merely a servant of the command, transcribing these stories of the holy life.