How did Sai Baba demonstrate his omniscience and grace through the scriptural readings at the Wada?

Sai Baba's profound skill in bestowing grace was often demonstrated in miraculous ways connected to the scriptural readings. Chapter 18 recounts a fascinating phenomenon where Baba would sometimes tell a devotee a short story at the Masjid. He would then immediately instruct them to go to Sathe's Wada to listen to the ongoing reading. Upon arriving, the sincere listener would find that the very same story they had just heard from Baba would come up in the book being read by Jog. This served as a powerful confirmation and provided a full understanding of Baba's initial story, making it seem as if Eknath's or Jnaneshwar's words were a direct translation of Baba's own speech, a wonder to all who experienced it.