Based on Chapter 1, what role does Goddess Saraswati play in the creation of the Sai Satcharitra, and how is she portrayed?

In Chapter 1, Goddess Saraswati is invoked as the daughter of Brahma and the Goddess of Speech, essential for the creation of any literature. The author portrays her as one who holds the Brahma-veena and rides a swan, and he pleads for her grace, questioning how he could possibly write the book without her mercy. He asks her to make him the instrument to share the nectar of Sai's life. Significantly, the chapter also presents a non-dualistic view, stating that Sai himself is Goddess Saraswati, holding the Omkara-veena and singing his own life story for the salvation of his devotees.