Why did Sai Baba tell Sapatnekar's life story to a shepherd woman instead of just talking to him directly?

According to Chapter 48 of the Shri Sai Satcharitra, Sai Baba's method was indirect and profound. While Sapatnekar was massaging his feet, a Dhangar (shepherd) woman arrived and Baba began a conversation with her. The miracle, as Sapatnekar listened, was that every word of the story Baba told the woman was actually his own life story, including the painful memory of his deceased son. This indirect approach served to demonstrate Baba's omniscience in a shocking and undeniable way, causing Sapatnekar to be filled with wonder and deep respect, realizing how everything was "clear to Baba" like a "gooseberry in the palm of the hand."