What sacred books did Sai Baba encourage his devotees to read in Shirdi, and why did he consider them so important?

Sai Baba placed great importance on the reading of specific sacred texts for the spiritual welfare and salvation of his devotees. According to Chapter 18, he particularly emphasized the daily reading of the Jnaneshwari (also known as Bhavartha Deepika) and the Nath Bhagavat, which is the eleventh Skandha of the Bhagavat containing the Uddhava Gita. The text describes these as divinely inspired books, with the dialogue between Krishna and Uddhava being portrayed as superior to the one in the Bharata. Baba would have them read daily in Sathe's Wada by devotees like Bapusaheb Jog, believing that those who perform the reading with faith attain God instantly.