Can you explain the 'great wonder' that devotees experienced when Baba sent them to listen to the book readings?

Chapter 18 describes a profound and wondrous method Sai Baba used to instruct his followers. He would often tell a devotee a short story while they were with him in the Masjid. Immediately after, he would send that person to Sathe's Wada to listen to Bapusaheb Jog's ongoing reading of the sacred books. The 'great wonder' for the listeners was that the very story Baba had just told would then appear in the portion of the book being read at that exact moment. This provided the devotee with powerful confirmation and a deeper understanding of Baba's teaching, making it seem as if the ancient text was a direct translation of Baba's own words.