Can you describe the 'Satya-Sai vow' that the Patil started, including its purpose and how it was performed?

According to Chapter 13, the Patil initiated a new tradition called the 'Satya-Sai vow' as a way to express his gratitude and devotion. This practice was modeled after the Satyanarayan vow, which people undertook to overcome crises. On Thursdays, after bathing, the Patil would observe this vow. Instead of reading the traditional story, he would read from the 'modern Bhaktalilamrut' written by Das Ganu. Specifically, he would read the three chapters dedicated to the character of Sai, which he considered to be the 'Satya-Sai story.' This practice brought him boundless happiness and peace of mind.