What does Chapter 33 teach about the concepts of Maya and Brahman, using the sacred ash as a central symbol?

In Chapter 33, the distribution of Udi is used to illustrate a core philosophical truth about reality. The sacred ash is presented as a sign that the entire visible universe is pervaded by Maya, or illusion. Just as wood burns to become ash, all material forms are temporary and will eventually resolve into a simpler state. The chapter states that Baba gave the Udi to impart the lesson that "Brahman alone is real, the cosmos is infinite." Therefore, the Udi is not just ash; it is a symbol of this ultimate truth, encouraging individuals to maintain the awareness that the material world is illusory and to seek the permanent reality of Brahman.