How did Sai Baba propose to resolve Das Ganu's confusion about the Ishavasya Upanishad?

According to Chapter 20 of the Sai Satcharitra, when Das Ganu was struggling to understand the deep meaning of the Ishavasya Upanishad for his commentary, he took his doubt to Sai Baba in Shirdi. Instead of explaining it himself, Baba offered a surprising solution. The text recounts Baba's words: "The resolution of this doubt of yours will be done by the maidservant at Kaka’s house When you return there." This demonstrates Baba's unconventional method of teaching, suggesting that profound spiritual wisdom could be revealed through an unexpected and humble source.