What was the specific project Das Ganu was undertaking, and why did it lead him to seek Sai Baba's help in Shirdi?

According to Chapter 20, Das Ganu was authoring a commentary called the "Ishavasya-Bhavartha-Bodhini." His intention was to make the profound Ishavasya Upanishad accessible to those who were ignorant of the Sanskrit language by explaining it word for word in simple Prakrit Ovi verses. Although he completed the literal translation, he felt that he had failed to grasp the "internal secret" or the deeper essence of the scripture, which left his mind without joy or satisfaction. This significant doubt about the true meaning of the Upanishad is what compelled him to travel to Shirdi and place his problem at the feet of his Satguru, Sai Baba.