What conditions did Sai Baba set for the author to receive His full assistance in writing the book?

According to the narrative in Chapter 2, Sai Baba laid out a crucial spiritual condition for the author to receive His complete help. He instructed the author to "dissolve his ego and surrender it at my feet." Sai elaborated that once the ego is completely dissolved with no trace remaining, He Himself would enter with 'I-ness' and write with His own hand. He promised that for one who acts in this manner, He would not only provide full assistance with the story but would also serve them in all ways in their home, highlighting the importance of ego-surrender in spiritual endeavors.