Can you explain the concept of non-duality (Advaita) and the dissolution of ego as presented in Chapter 6?

Chapter 6 of the Sai Satcharitra touches upon the advanced spiritual concept of non-duality. It describes how the Sadguru, Sai Baba, awakens the sense of 'I am He' (Soham) within a devotee, revealing their innate bliss. This process directly leads to the dissolution of the sense of 'me and mine,' which is the core of the ego. As mentioned in the chapter, by revealing this innate bliss, the Sadguru manifests the harmony of non-duality (Advaita) right then and there. The Guru's touch is described as powerful enough to burn the subtle body of ego into ashes, which is something that even the fire of cosmic dissolution cannot do.