How did Sai Baba utilize sacred texts like the Nath Bhagavat to instruct his followers in Shirdi?

According to Chapter 18, Sai Baba demonstrated a profound skill in bestowing grace by instructing devotees in various ways. He would assign the reading of divinely inspired books, like the Nath Bhagavat, to a specific devotee for the salvation of souls. For instance, he tasked Bapusaheb Jog with reading daily in Sathe's Wada. To ensure others benefited, Baba would send devotees who came to visit him in the Masjid to go and listen to the reading. In a remarkable display of his omniscience, Baba would sometimes tell a short story, and when the listener went to the Wada, they would hear that exact same story being read from the book, providing confirmation and a deeper understanding.