According to the source text, what are the rules and consequences surrounding departure from Shirdi as explained in Chapter 9?

Chapter 9 establishes a strict protocol for pilgrims regarding their departure from Shirdi. The text emphasizes it as a key characteristic of the pilgrimage that if a devotee departs without Sai Baba's explicit permission, they invite obstacles and trouble. The source provides examples of such suffering, including being looted by thieves. Conversely, once permission is given, one should not delay their departure, as staying longer also brings trouble. As Chapter 9 states, many devotees experienced this firsthand. Those who acted outside of his orders suffered greatly, creating experiences they remembered for a lifetime, reinforcing the importance of adhering to Baba's timing.