What specific sacred books did Sai Baba have his devotees read in Shirdi, and why were they considered so important?

Sai Baba placed great importance on the daily reading of specific divinely inspired books for the salvation of souls. As detailed in Chapter 18, the two main texts he emphasized were the Nath Bhagawat, also referred to as the Uddhava Gita or the eleventh Skandha of the Bhagavat, and the Jnaneshwari, a commentary on the Gita also known as Bhavartha Deepika. The Nath Bhagawat was considered even better than the dialogue between Krishna and Arjuna, being the loving speech of Nath himself. Baba ensured these books were read daily in Shirdi, assigning the task to devotees like Bapusaheb Jog in Sathe’s Wada, believing that those who performed the reading with faith would attain God instantly without needing to retreat to a forest.