What was Sai Baba's direct role and promise concerning the writing of his life story?

According to Chapter 2, Sai Baba directly commanded that a collection of his stories and experiences be made, promising his full help. He profoundly stated that the author was merely a pretext and that He Himself would write His own story to fulfill the devotee's wish. The primary condition for this divine assistance was that the author must dissolve his ego and surrender it completely at Baba's feet. For one who acts this way, Baba promised not only to assist with the book but to serve them in all ways in their home, entering with 'I-ness' to write with His own hand.