How involved was Sai Baba in the creation of his biography? Did he just give permission?

Sai Baba's role in the creation of his biography was far more profound than simply granting permission. As detailed in Chapter 2, He explicitly stated that the author was merely an instrument. Baba's compassionate words were, "He is merely a pretext; I myself shall write my own story!" He promised his full help and declared that if a devotee dissolves their ego and surrenders, He would not only assist but personally enter with 'I-ness' and write with his own hand. This indicates that Baba saw the work as his own spiritual undertaking, channeled through the author.