How does the Satcharita explain the connection between Udi, Brahman, and Maya?

The Shri Sai Satcharita, in Chapter 33, elaborates on the Udi as a profound lesson in non-duality. It explains that the sacred ash is a tangible symbol intended to help one understand that the entire universe is pervaded by Maya, or illusion, and that Brahman alone is the sole, ultimate reality. The Udi serves as a potent reminder that the physical body is temporary, destined to become ash after its karmic journey is complete. By giving this Vibhuti, Baba was imparting a continuous lesson: 'may you maintain this remembrance' that the cosmos is infinite, but only Brahman is truly real, while the perceived world is illusory. The Udi is presented as the very sign of this ultimate truth.