Describe the unique and essential role Tatya Patil played in initiating Sai Baba's departure for the Chavadi.

Tatya Patil's role was crucial and highlighted his intimate relationship with Sai Baba. As described in Chapter 37, even if Baba was ready, He would remain seated and wait until Tatya arrived. The procession would not start without him. Only when Tatya Patil came and put his hand under Baba's arm to raise Him would Baba prepare to leave. Tatya would also place a beautiful golden-bordered shawl over Baba. Their bond was so close that Tatya called Baba 'Mama' (uncle), and the text notes there is no comparison for their relationship.