How does Sai Baba's teaching about Udi connect to the Vedantic concepts of Brahman and Maya?

Sai Baba's use of Udi is deeply connected to Vedantic philosophy. Chapter 33 explains that the Udi is a sign of the ultimate truth that "Brahman alone is real, the cosmos is infinite." The sacred ash symbolizes the illusory nature of the physical world, which is pervaded by Maya. By giving Udi, Baba was providing a tangible object for contemplation, urging devotees to understand that the entire universe, including their own bodies, is as transient as ash. This practice was meant to help one accept with certainty the core Vedantic principle that the ultimate reality is Brahman, not the illusory world of Maya.