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

The Shri Sai Satcharitra explains Sai Baba's ability to know Sapatnekar's entire life story through a deep spiritual principle. Chapter 48 states that after Sapatnekar wondered how Baba knew everything, it is clarified that for Baba, all things were as clear as "a gooseberry in the palm of the hand." This is because Baba is described as being the form of Brahman, the Supreme Being, and one with the entire universe. The text posits that since He has manifested as the world itself, there is no distinction of "mine" and "thine" for Him. Being merged with the Supreme Being, He transcends the duality of seer, seeing, and seen, making him a "great knower of the inner self" to whom all life stories are an open book.