How does Chapter 33 describe the process by which Sai Baba obtained Udi and its role in granting leave to devotees?

As detailed in Chapter 33, Sai Baba would collect Dakshina, perform charitable deeds, and purchase bundles of firewood. He would offer these dry logs into the sacred Dhuni, a fire he kept constantly burning. The ash that remained in great quantity from this fire was the Udi he would distribute. The chapter specifically highlights the practice of giving Udi to devotees when they asked for his permission to leave Shirdi. It was known to all that when Baba said, "Take the Udi," it signified that true permission to depart was granted, which would make the devotee feel enthusiastic about their return journey.