Which chapter explains the concept of the 'triad' of seer, seen, and seeing vanishing in the presence of Sai?

Chapter 35 provides a profound teaching on how a devotee's perception is transformed by Sai's grace. It explains that for a devotee, the subject of every vision is Sai Baba himself. This experience is so total that the conventional separation between 'the seen, the seer, and the seeing vanishes, erasing the place of duality.' As stated in this chapter, this principle of the shattering triad is extended to other senses as well, including the hearer, the heard, and hearing, illustrating a state of non-dual consciousness where only Sai's presence remains.