How does Chapter 33 connect the physical act of maintaining the Dhuni with the philosophical concept of Maya and Brahman?

Chapter 33 of the Sai Satcharitra beautifully connects the physical practice of the Dhuni with the high philosophy of Vedanta. Baba would constantly tend the sacred fire (Dhuni) by offering firewood into it. The resulting ash, or Udi, was then given to devotees. This act was a living sermon. The chapter explains that the Udi is a sign that the entire universe is pervaded by Maya (illusion) and is ultimately transient, like ash. In contrast, it states that 'Brahman alone is real.' Therefore, the process of burning wood into ash in the Dhuni was a direct, physical demonstration of this truth. The Udi served as a tangible reminder for devotees to maintain awareness of this distinction between the illusory cosmos and the eternal reality of Brahman.