Based on the invocations in Chapter 1, how is the non-dualistic nature of Sai Baba established by identifying him with multiple deities?

Chapter 1 of the Shri Sai Satcharitra establishes the non-dual nature of Sai Baba by systematically identifying him with the very deities being invoked. After paying salutations to Lord Ganesha, the text asserts, 'This Sai himself is Ganesha Ganapati.' Similarly, after invoking Goddess Saraswati, it states, 'Sai himself is Goddess Saraswati... singing his own life story.' The chapter culminates this theme by directly addressing Sai as the embodiment of the Hindu trinity, stating, '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 shows that Sai is the one, compassionate, non-dual reality manifesting as all divine forms.