Can you explain the spiritual concepts like 'Soham' and 'Advaita' as mentioned in Chapter 6 of the Sai Satcharitra?

Chapter 6 of the Sai Satcharitra delves into profound spiritual concepts, explaining how the Sadguru facilitates these experiences for the devotee. The chapter describes the Guru awakening the sense of 'Soham,' which translates to 'I am He.' This realization signifies the oneness of the individual soul with the Supreme Being. Following this, the Guru helps dissolve the sense of 'me and mine,' which is the root of ego and separation. This process, as detailed in Chapter 6, leads to the manifestation of the harmony of non-duality, or 'Advaita.' Advaita is the philosophical truth that there is no separation between the self, the world, and the ultimate reality. The Sadguru's grace is presented as the key to directly experiencing these ultimate truths.