What was the specific problem Das Ganu faced in Chapter 20, and what was Sai Baba's initial response?

Chapter 20 recounts that Das Ganu was composing the 'Ishavasya-Bhavartha-Bodhini,' a simple commentary on the Ishavasya Upanishad. Although he completed a word-for-word translation, he felt that the 'internal secret' or deeper meaning eluded him, and his mind 'found no joy' in the work. Plagued by this intellectual and spiritual block, he took his doubt to Sai Baba in Shirdi. Instead of giving a direct explanation, Baba provided a cryptic solution. As stated in Chapter 20, Sai Baba told him, 'The resolution of this doubt of yours will be done by the maidservant at Kaka’s house When you return there.'