What sacred books did Sai Baba encourage his devotees to read, and what was the purpose of these readings?

According to the account in Chapter 18, Sai Baba placed great importance on the reading of specific sacred texts for the salvation and welfare of his devotees. The two main books mentioned are the Bhagavad Gita and the Bhagavat. Specifically, he had devotees read Jnandeva's Bhavartha Deepika, which is a commentary on the Gita also known as Jnaneshwari, and the eleventh Skandha of the Bhagavat, referred to as Nath Bhagawat or the Uddhava Gita. Baba believed these divinely inspired books could help a devotee attain God instantly if read with faith, making it a cornerstone of the spiritual practice in Shirdi.