Can you explain Sai Baba's attitude towards ego and his service to others as depicted in Chapter 36?

Chapter 36 portrays Sai Baba as a being who is completely beyond ego. He is described as a "swan in the lake of the Supreme" who is "indifferent to the 'I am He' (So-ham) attitude." This indicates a state of non-duality and a complete lack of personal ego. Instead of focusing on his own divinity, the chapter notes that he "delights in the service of those liberated in Brahman," showing his humility and focus on service. This characteristic, detailed in Chapter 36, paints a picture of a Sadguru who, despite possessing infinite glory, finds joy in serving others and remains detached from the sense of self.