How did Sai Baba uniquely reveal Sapatnekar's own life story to him without speaking to him directly?

The Shri Sai Satcharitra details a fascinating miracle in Chapter 48. While Sapatnekar was massaging Baba's feet, a Dhangar (shepherd) woman arrived. Baba then began a conversation with her, narrating a story ostensibly about a merchant. However, as Sapatnekar listened carefully, he was shocked to realize that every word was his own life story. Baba recounted events from Sapatnekar's birth to the present, even including the deeply personal news of his late son's death. The woman had no connection to the story, making it clear the lesson was intended for Sapatnekar, demonstrating Baba's omniscience.