According to the invocations in Chapter 1, what is the role of Goddess Saraswati in the creation of the Sai Satcharitra?

In the opening of the Sai Satcharitra, the author invokes Goddess Saraswati, highlighting her indispensable role in the creation of any literary work. Chapter 1 describes her as the daughter of Brahma, the Goddess of Speech, and the Mother of the World, who holds the Brahma-veena and rides a swan. The author humbly acknowledges that without her grace, writing the book would be impossible, praying for her to make him an instrument to 'feed the nectar of the life of the capable Sai to everyone.' Furthermore, the chapter beautifully equates Sai Baba with Saraswati, stating, 'Sai himself is Goddess Saraswati, holding the Omkara-veena in hand, singing his own life story for the salvation of his devotees.' This implies the Satcharitra is a divine act, with Sai himself inspiring and narrating his biography through the author.