Based on the text, which two scriptures were considered the main books for daily reading in Shirdi, and how were they regarded?

Chapter 18 identifies the Bhagavad Gita and the Bhagavat as the two main books that formed the core of the daily readings. The commentary on the Gita known as Jnaneshwari (or Bhavartha Deepika) and the eleventh Skandha of the Bhagavat (the Nath Bhagawat or Uddhava Gita) were specifically highlighted. These were not merely read but revered. The Nath Bhagawat is described as a "platform for the highest spiritual goal" and its dialogue is considered superior to that in the Bharata. Together, these texts represented the essence of the Bhagavat religion, and Sai Baba ensured they were read and explained daily for the spiritual welfare of his devotees.