Can you explain the philosophical concepts of 'Soham' and 'Advaita' as they are presented in Chapter 6?

Chapter 6 touches upon advanced philosophical concepts, attributing the realization of them to the Sadguru's grace. It states that the Sadguru awakens the sense of 'Soham,' which translates to 'I am He,' fostering a realization of the devotee's inherent divinity and oneness with the ultimate reality. Following this, the Guru reveals innate bliss and dissolves the sense of 'me and mine.' This process culminates in manifesting the harmony of 'Advaita,' or non-duality. As described in this chapter, the Guru's role is to guide the devotee from a state of separation and ego to a state of unified, non-dual consciousness.