According to Chapter 33, what is the deep philosophical meaning behind Sai Baba distributing Vibhuti (sacred ash)?

Chapter 33 explains that Sai Baba's act of giving Vibhuti, or Udi, was imbued with deep philosophical meaning. The Udi is presented as a symbol to help devotees understand that the entire visible universe is transient and ultimately turns to ash. The chapter quotes Baba's intention: to remind us that our bodies, made of five elements, will also become ash after experiencing their destined enjoyments. This practice was meant to instill a constant awareness that Maya (illusion) pervades the universe, while Brahman alone is the ultimate, unchanging reality. Therefore, as Chapter 33 clarifies, accepting the Udi was to accept this profound truth with certainty.