What is the 'Satya-Sai vow' and how did the Patil initiate this practice?

The 'Satya-Sai vow' is a devotional practice started by the Patil, as described in Chapter 13. After being miraculously cured by Sai Baba's grace, the Patil was inspired by the common tradition of performing a Satyanarayan vow to overcome crises. He adapted this by creating the Satya-Sai vow. On every Thursday, after bathing, the Patil would read three specific chapters about Sainath from the 'modern Bhaktalilamrut' written by Das Ganu. This reading was accompanied by offerings and celebrations, similar to a traditional puja. Chapter 13 notes that the Patil equated Sai with Narayan, seeing no difference, and this new tradition he started brought him boundless happiness and eventually became a custom in his village.