What is the deeper spiritual meaning behind the Udi that Sai Baba distributed from the sacred fire?

The Udi, or sacred ash, that Sai Baba distributed holds a profound spiritual meaning concerning the nature of existence. According to Chapter 33, Baba intended the Udi to serve as a powerful reminder that the entire visible universe is transient and ultimately nothing but ash. He taught that the physical body, composed of five elements, is temporary and will also turn to ash once its destined experiences are exhausted. Therefore, the Udi is a symbolic lesson in detachment, meant to help devotees remember that Brahman alone is the ultimate reality, while the cosmos we perceive is pervaded by Maya, or illusion.