What was Sai Baba's unusual advice to Das Ganu regarding his confusion about the Ishavasya Upanishad?

When Das Ganu approached Sai Baba in Shirdi with a doubt about the deep meaning of the Ishavasya Upanishad, Baba did not provide a direct scriptural explanation. Instead, as recounted in Chapter 20, he offered a very peculiar and unexpected solution. Baba told him, "The resolution of this doubt of yours will be done by the maidservant at Kaka’s house When you return there." This mysterious instruction redirected Das Ganu away from a scholarly answer and towards a lesson that would be delivered through an unlikely and humble source, setting the stage for a profound teaching on humility and divine wisdom.