The texts describe a specific protocol for leaving Shirdi. Can you explain this process and the integral role Udi plays in it?

According to the teachings in Chapter 35, there is a strict protocol for departing from Shirdi that is governed by Sai Baba's will, not one's own. The text emphasizes, 'Without my wish, who will leave the doorstep?' Leaving of one's own accord is a transgression that invites obstacles, remorse, and humiliation. The proper procedure requires a devotee to go before Baba and ask for his permission to leave. The granting of this permission is not merely verbal but is symbolized by a specific act. As Chapter 35 states, 'The blessing along with the Udi is the permission to leave.' Therefore, receiving the Udi Prasad from Baba is the essential and conclusive sign that one has his consent and blessing to depart, ensuring a safe and peaceful journey.