Can you explain the concept of non-duality (Advaita) and the realization of 'Soham' as presented in Chapter 6?

Chapter 6 touches upon the advanced spiritual concept of Advaita, or non-duality, through the grace of the Sadguru. The text explains that by placing His lotus-hand on a devotee's head, Sai Baba awakens the innate sense of 'Soham,' which translates to 'I am He.' This realization is the understanding that the individual self is not separate from the divine. The chapter describes how this awakening leads to the dissolution of the sense of 'me and mine'—the very foundation of ego and separateness. In this state, the harmony of non-duality is manifested, and the devotee experiences supreme, innate bliss.