Can you explain the 'great wonder' that devotees experienced when listening to the readings at Sathe's Wada, as orchestrated by Sai Baba?

Chapter 18 describes a 'great wonder' that showcased Sai Baba's omniscience and unique teaching style. Baba would sometimes tell a short story to a devotee in the Masjid and then, while the person was still pondering it, He would send them to the Wada for the book reading. The wonder occurred when the sincere listener arrived at the Wada to find that the exact same story was being read from the scripture at that very moment. This provided a powerful confirmation and a deeper understanding of Baba's initial story, making them realize that Baba’s own speech was essentially a translation of the sacred words of Jnaneshwar or Eknath. This was Baba's profound skill in bestowing grace.