How does Chapter 33 of the Sai Satcharitra use the concept of Udi to teach about the impermanence of the physical world and the body?

Chapter 33 of the Sai Satcharitra delves into the profound teachings Sai Baba imparted through the simple act of giving Udi. The chapter explains that the Udi was a powerful metaphor for impermanence. Baba's intention was to make devotees understand that the entire visible universe is ultimately just ash, highlighting its transient nature. The text specifically states that Baba used the Udi to teach that the body, made of five elements, is like a piece of wood. It exists only to experience its destined enjoyments, and once those are exhausted, it becomes motionless and turns to ash. By giving this sacred ash, Baba was providing a constant, tangible reminder of this reality, encouraging detachment from the physical form and the material world, and fostering an awareness of the eternal reality of Brahman.