How did Sai Baba assure the author that the work of writing his stories would be successful?

In Chapter 2, Sai Baba provides powerful encouragement and assurance to the author. He not only gave permission but declared, "My full help is with it." Going further, Baba revealed that the author was merely a pretext, stating, "I myself shall write my own story!" He promised to give His full assistance to any devotee who dissolves their ego and surrenders at His feet. Baba explained this divine process by saying that once the ego is gone, "I myself shall enter with 'I-ness' and write with my own hand," ensuring the work would be accomplished by the One to whom it truly belongs.