How does Chapter 6 illustrate the concepts of non-duality (Advaita) and the devotee's experience of seeing Sai Baba as other deities like Rama and Krishna?

Chapter 6 delves into the profound spiritual concept of non-duality (Advaita) and the devotee's perception of Sai's omnipresence. The text explains that the Sadguru awakens the sense of 'Soham' or 'I am He' within the devotee, revealing their innate bliss. This realization dissolves the illusory sense of 'me and mine,' establishing a harmony of non-duality. This chapter also illustrates how this oneness is experienced practically by devotees. For instance, when a devotee sits to read scriptures or Puranas, they remember Sai Baba at every step, perceiving Him in the forms of Rama and Krishna. The text specifically mentions that while listening to the Bhagavat, devotees would see Sai as Krishna from head to toe, feeling as though He Himself were singing the Uddhava Gita for their welfare.