What was the miracle that Sapatnekar witnessed during Baba's conversation with the Dhangar woman?

The miracle Sapatnekar witnessed was a profound display of Sai Baba's omniscience. While Sapatnekar was massaging Baba's feet, a Dhangar (shepherd) woman arrived, and Baba began a conversation with her. As described in Chapter 48, Sapatnekar listened carefully and was shocked to realize that Baba was narrating his own life story in its entirety, though it was disguised as a story about a merchant. The account was incredibly detailed, even mentioning the painful news of his late son's death. This indirect revelation, where Baba told Sapatnekar's own history to a third party, filled Sapatnekar with immense wonder and solidified his reverence for Baba's all-knowing nature.