Can you explain the miracle Sapatnekar witnessed involving the Dhangar woman and Sai Baba?

The miracle Sapatnekar witnessed was a profound display of Sai Baba's omniscience. As Sapatnekar was massaging Baba's feet, a Dhangar (shepherd) woman arrived and began talking with Baba. Sapatnekar listened carefully to their conversation and was shocked to realize that Baba was narrating his own life story, disguised as a tale about a merchant. Chapter 48 of the Shri Sai Satcharitra details how every word of the conversation corresponded to Sapatnekar's life, even including the painful memory of his deceased son. The Dhangar woman had no connection to the story; Baba was using the conversation as a vehicle to reveal his intimate knowledge of Sapatnekar's past.