Can you explain the role of Goddess Saraswati as presented in Chapter 1 of the Satcharitra?

According to Chapter 1 of the Sai Satcharitra, Goddess Saraswati is invoked as the goddess of speech and knowledge, whose grace is essential for the author to write the book. She is described as the daughter of Brahma, a 'wave of cleverness,' who holds the Brahma-veena and rides a swan. The author pleads for her to make his tongue her swan and ride upon it, signifying a request for eloquence and divine inspiration. The text poses a rhetorical question: 'Without the grace of this Goddess of Speech and Mother of the World, can any literature be achieved?' This emphasizes her critical role. Furthermore, Chapter 1 reveals a profound identification, stating that Sai himself is Goddess Saraswati, holding the Omkara-veena and singing his own life story.