Could you explain the deeper philosophical meaning of the Udi that Baba gave?

The Udi given by Sai Baba carries profound philosophical significance, primarily as a lesson in impermanence and detachment. Chapter 33 teaches that the Udi symbolizes the transient nature of our physical existence, stating, "This worldly life is like Udi." It serves as a reminder that the body is perishable, like "water on a lotus leaf," and will eventually fall. By gifting the ash, Baba encouraged the renunciation of pride in one's physical form. It represents the ultimate destination of name and form, urging one to contemplate the falsity of the world and realize the underlying truth through this simple substance.