Can you describe the miraculous event that revealed Sai Baba's omniscience to Sapatnekar?

The miracle that revealed Baba's all-knowing nature occurred while Sapatnekar was massaging his feet. As detailed in Chapter 48, a Dhangar (shepherd) woman arrived and Baba began a conversation with her. Sapatnekar listened carefully and was shocked to realize that every word of the conversation was his own life story. Though ostensibly about a merchant, Baba recounted Sapatnekar's life from birth, even mentioning the death of his late son. Hearing his own private history from Sai’s mouth filled Sapatnekar with great wonder and etched a deep respect for Baba in his mind, making him realize everything was clear to Baba.