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

According to Chapter 2, Sai Baba's involvement was profound and central to the creation of the work. He told the author, "I myself shall write my own story!" and that the author was "merely a pretext." Sai promised his full help and assistance, stating that for a devotee who dissolves their ego and surrenders at his feet, he would not only help with the story but serve them in all ways. He explained that once the ego is dissolved, he himself would enter with 'I-ness' and write with his own hand, making it clear that the entire work was accomplished by the one to whom it belongs.