Can you explain the origin and significance of Damu Shet Kasar's vow related to the Ram Navami festival?

The story behind Damu Shet Kasar's vow is a testament to his faith. According to the account in Chapter 0, he was initially childless despite having two wives. After receiving a blessing from Maharaj that resulted in the birth of a son, his faith became unshakeable. As a result, Damu Shet took a vow to bring a new ceremonial flag for the Ram Navami festival each year. In addition to the flag, his vow also included feeding all the Fakirs who gathered for the occasion. This tradition, born from gratitude, was still being honored at the time the text was written.