What is the primary topic of Chapter 33 of the Sai Satcharitra, and what was Sai Baba's daily practice associated with it?

According to the source text, Chapter 33 of the Shri Sai Satcharita focuses on the glory of Udi, or sacred ash. The chapter transitions from the previous discussion on the greatness of the Guru to this specific topic. It describes Sai Baba's daily practice, which involved maintaining a sacred fire, the Dhuni, into which he would offer bundles of firewood. The resulting ash, the Udi, was then distributed generously. As Chapter 33 explains, Baba would give Udi to devotees as they were leaving Shirdi, signifying his permission, and also to those staying in Shirdi in the mornings, afternoons, and evenings, ensuring no one was sent away empty-handed.