Based on the text, what was Tatya Patil's role and relationship with Sai Baba during the Chavadi procession?

Chapter 37 highlights Tatya Patil's central and indispensable role in the Chavadi procession. His relationship with Baba was one of profound mutual love, to the extent that Tatya affectionately called Baba 'Mama' (uncle). His significance is underscored by the fact that Sai Baba would not begin the procession, even if He was ready, until Tatya arrived. It was Tatya who would physically assist Baba, putting a hand under His arm to help Him stand. Furthermore, Tatya would lovingly place a beautiful golden-bordered shawl over Baba's head before they departed, demonstrating an intimate, familial bond and a key ceremonial function.