What specific vow did Balasaheb Deo make to Sai Baba regarding his difficulty with reading the Dnyaneshwari?

After becoming distressed by his repeated failures to read the Dnyaneshwari, Balasaheb Deo made a very specific vow. As detailed in Chapter 41, he decided to surrender the issue entirely to his Guru. He made a firm rule for himself: he would only resume reading the sacred text when Sai Baba Himself gave him the love for it and a direct order to 'Read.' He placed his faith at Sai's feet and sat with this firm resolve, deciding to wait for a clear instruction before he would start again without any confusion.