According to Chapter 33, what was the specific meaning of receiving Udi from Baba when a devotee wished to leave Shirdi?

Chapter 33 of the Sai Satcharitra describes a very specific and practical significance attached to receiving Udi when a devotee was preparing to leave Shirdi. The text explicitly states that this practice was known to all devotees. When a devotee asked for permission to return to their village, and Baba responded by saying, "Take the Udi," it was understood as his true and formal permission being granted. As mentioned in Chapter 33, receiving this sacred ash for their departure would make the devotee feel enthusiastic and blessed for their journey, assured that they were leaving with Baba's consent. It was more than just a souvenir; it was the confirmation of his blessing for their travel.