Can you explain the philosophical and spiritual significance of the Udi that Baba gave?

The Udi given by Sai Baba carries profound spiritual meaning, primarily serving as a reminder of the impermanence of life. Chapter 33 explains that our worldly life is like Udi, and our perishable bodies will eventually fall, just like water on a lotus leaf. This teaching, symbolized by the gift of Udi, encourages the renunciation of pride in one's physical form. The text further elaborates that the entire world is like a 'game of Rangoli made of ash,' urging contemplation on the falsity of the world to realize the truth represented by the Udi, which is the ultimate destination of all name and form.