What was Sai Baba's direct involvement in the writing of his life story?

According to Chapter 2, Sai Baba's involvement was profound and central to the creation of his life story. When the author sought permission, Sai Baba not only provided it but declared, "My full help is with it. He is merely a pretext; I myself shall write my own story!" This indicates that Baba saw the author as a divine instrument. However, this divine assistance was conditional upon the author dissolving his ego and surrendering it at Baba's feet. Only then, Baba promised, would he enter with 'I-ness' and write with his own hand, ensuring the work was truly a divine manifestation.