How does the Shri Sai Satcharitra explain Baba's ability to know every detail of Sapatnekar's life, including his past?

Chapter 48 of the Shri Sai Satcharitra explains Sai Baba's omniscience through a profound spiritual lens. After hearing his life story from Baba's mouth, Sapatnekar wondered how Baba could know such things. The text clarifies that Baba is the very form of Brahman and that the entire universe is his family. It states that he has manifested as the universe itself, which is the "sign of Sai." Because he is merged with the Supreme Being, the distinctions of "mine" and "thine" or the language of duality do not apply to him. For Baba, everything is an open book, as he is one with all of existence.