How did Balasaheb Deo's experience with the Dnyaneshwari differ from his attempts to read other books?

Chapter 41 highlights a stark contrast in Balasaheb Deo's reading habits. While he was able to read other books regularly and without issue, even during a three-month leave, his attempts with the Dnyaneshwari were consistently thwarted. The source explains that when he took other books in hand, they were read regularly. However, when he took the Dnyaneshwari, doubts would arise in his heart, which made the reading feel superficial and prevented him from developing love for it. This specific and repeated failure with the Dnyaneshwari, despite his strong intent, was the core of his struggle.