What is the role of Goddess Saraswati as described in Chapter 1, and how is she connected to Sai Baba?

Chapter 1 describes Goddess Saraswati as the daughter of Brahma and a 'wave of cleverness.' The author bows to her, acknowledging that without the grace of this Goddess of Speech, no literature can be achieved. She is depicted holding the Brahma-veena, riding a swan, and wearing white clothes. The author prays to her to become an instrument to 'feed the nectar of the life of the capable Sai to everyone.' Crucially, Chapter 1 establishes a direct connection by stating, 'Sai himself is Goddess Saraswati, holding the Omkara-veena in hand, singing his own life story for the salvation of his devotees,' thus identifying Sai with the very source of knowledge and speech.