Can you explain the concept of non-duality and the merging of the senses as described by the author at the end of Chapter 35?

Towards the end of Chapter 35, the author describes a profound state of non-dual consciousness experienced through devotion to Sai Baba. This experience transcends the normal separation between the observer, the object being observed, and the act of observation. The text states that when looking at Sai, the "triad of the seen, the seer, and the seeing vanishes," erasing all duality. This principle is extended to all other senses. For instance, in the sense of touch or smell, Sai's presence is felt in both the sense organ and the object of sensation. Similarly, as Chapter 35 explains, when a word is heard, Sai's form immediately manifests, and the distinction between the hearer, the heard, and the act of hearing shatters, illustrating how complete devotion dissolves the ego's sense of separation.