How does Chapter 1 equate Sai Baba with the deities being invoked, such as Ganesha and Saraswati?

Chapter 1 of the Sai Satcharitra uniquely identifies Sai Baba with the very deities being invoked. After offering salutations to Ganesha as the destroyer of obstacles, the text explicitly states, "This Sai himself is Ganesha Ganapati; this Sai, taking the axe in hand and destroying obstacles, shall bring forth his own knowledge." Similarly, after bowing to the Goddess of Speech, the chapter follows with, "Sai himself is Goddess Saraswati, holding the Omkara-veena in hand, singing his own life story for the salvation of his devotees." This chapter also directly addresses Sai as the embodiment of Brahma, Vishnu, and Shiva, establishing him as the non-dual form of all these divine principles.