What philosophical explanation is given for Sai Baba's omniscience in the story of Sapatnekar?

After Sapatnekar heard his own life story from Sai Baba's mouth, he was filled with wonder. The narrative in Chapter 48 of the Shri Sai Satcharitra provides a profound philosophical explanation for this miracle. It states that Baba's omniscience is a natural result of his true nature, as he is the "form of Brahman" and the entire universe is his family. The text explains that for Sai, there is no distinction of "mine" and "thine" because he has manifested as the entire universe itself. Having merged with the Supreme Being, he transcends the language of duality. This oneness means that all knowledge is as clear to him as a "gooseberry in the palm of the hand," making him a "great knower of the inner self."