What was Balasaheb Deo's specific problem with reading the Dnyaneshwari, and what unique vow did he make because of it?

Balasaheb Deo had a profound desire to read the Dnyaneshwari daily, but as Chapter 41 explains, he consistently faced obstacles that prevented him from maintaining this practice, even though he could read other books without issue. He found that whenever he took the Dnyaneshwari in hand, doubts would arise in his heart, making the reading feel superficial and preventing him from developing a genuine love for it. His resolution failed even when he tried to read just five verses a day. Feeling distressed, Deo made a firm resolve, or vow, that he would only begin reading the Dnyaneshwari when Sai Baba Himself gave a direct and clear order to do so, rejecting any need for indirect tricks or hints.