How does the Satcharita explain Baba's philosophical reasoning behind the constant burning of the Dhuni and the giving of Vibhuti?

Chapter 33 of the Shri Sai Satcharita delves into the profound philosophy behind Baba's actions. The constantly burning Dhuni, fueled by firewood Baba purchased, produced the Udi, or Vibhuti, which he distributed. He explained that this practice was meant to instill a crucial understanding: the entire visible universe is ephemeral, akin to ash. The Udi symbolizes the truth that our bodies are like firewood, destined to become ash once their karmic enjoyments are exhausted. Through this daily ritual, Baba taught that only Brahman is real, while the cosmos is pervaded by Maya, or illusion.