Chapter 1 equates Sai Baba with multiple deities. Can you explain which deities are mentioned and how this divine equivalence is established?

Chapter 1 of the Sai Satcharitra establishes Sai Baba's divine equivalence with several deities through direct statements. First, after invoking Lord Ganesha, the text declares, "This Sai himself is Ganesha Ganapati." Later, when invoking the Goddess of Speech, it states, "Sai himself is Goddess Saraswati, holding the Omkara-veena in hand, singing his own life story." Finally, after offering salutations to the trinity of Brahma, Vishnu, and Shankar, the author addresses Sai directly, affirming, "O self-effulgent Sainath, you alone are our Lord of Ganas (Ganadhish), the Lord of Savitri (Brahma), the Lord of Rama (Vishnu), or the Lord of Uma (Shiva)." This illustrates the teaching that Sai is the non-dual embodiment of these major divine forms.