What specific vow did Balasaheb Deo make to Sai Baba regarding the Dnyaneshwari?

After numerous failed attempts to establish a daily practice of reading the Dnyaneshwari, Balasaheb Deo felt distressed. Chapter 41 explains that he eventually made a very specific vow out of his frustration and faith. He resolved from the heart, "Only when Sai Himself gives love And says 'Read,' then will I start without any confusion." He firmly decided to place the responsibility on his Guru, stating, "Only when Sai gives the order, Then only will I read the Dnyaneshwari." He then sat with this firm resolve, waiting for a direct instruction from Sai Baba before he would attempt to read the sacred text again.