Can you explain the "Satya-Sai vow" mentioned in Chapter 13 and how it compares to other religious practices?

The "Satya-Sai vow" is a devotional practice started by the Patil, as described in Chapter 13. The text draws a direct comparison to the traditional Satyanarayan vow, which people would undertake to overcome a crisis. The Patil adapted this concept to show his devotion to Sai Baba. Every Thursday, he would perform his vow, which involved reading the three chapters on Sainath from Das Ganu's 'Bhaktalilamrut' instead of the Satyanarayan story. The chapter emphasizes the equivalence, stating, "There it is Narayan, here it is Sai; there is no difference in either." This new custom, complete with offerings and celebration, spread throughout his village as a testament to his faith.