How does Chapter 33 connect Sai Baba's maintenance of the Dhuni fire with the act of giving Udi and its underlying message?

Chapter 33 of the Shri Sai Satcharita explicitly links the continuously burning Dhuni fire to the Udi and its philosophical lesson. Baba would buy bundles of firewood and offer the dry logs into the sacred Dhuni. The ash that remained from this fire in great quantity was the very Udi he would apply to devotees and give them to take home. The text clarifies the symbolism: just as the wood becomes ash, our own bodies and the entire visible cosmos are impermanent. The Udi, born from the Dhuni, was a physical representation of this teaching, a constant reminder to maintain awareness that everything is transient and will become ash, thereby encouraging detachment and focusing on the eternal reality of Brahman.