What was Sai Baba's daily practice concerning the sacred ash or Udi, and what was its deeper significance as explained in Chapter 33?

According to Chapter 33 of the Shri Sai Satcharitra, Sai Baba had a consistent daily practice involving Udi, or sacred ash. He would maintain a perpetually burning sacred fire, the Dhuni, by feeding it with firewood bundles He had purchased. The resulting ash was the Udi that He would distribute. The text states that Baba would give Udi to devotees at all times of the day and never send anyone away empty-handed. This Udi served a profound purpose, reminding recipients of the transient nature of the physical world. Baba intended for the Udi to convey that the entire visible universe, including our own bodies, is ephemeral and will ultimately turn to ash, encouraging a focus on the eternal reality.