Describe the specific vow Balasaheb Deo made after failing to read the Dnyaneshwari consistently.

After repeatedly failing to maintain his practice of reading the Dnyaneshwari, Balasaheb Deo made a very specific vow. Chapter 41 recounts that he became distressed by his inability to succeed in his resolution. Therefore, he made a firm decision from the heart: he would only begin reading the Dnyaneshwari again when Sai Baba Himself instilled the love for it in him and gave him a direct order to read. Placing his faith entirely at Sai's feet, he resolved to wait for this explicit command before making another attempt.