Can you explain the concept of non-duality using the metaphors from Chapter 52?

Chapter 52 uses several powerful metaphors to explain the concept of non-duality, which is the ultimate state of a devotee who takes refuge in Sai. The core idea is that the distinction between the devotee and the Guru disappears. The chapter compares this to a river entering the ocean, where it forgets its "river-ness" and becomes the ocean itself. Another metaphor used in Chapter 52 is of two lamps embracing to become a single, unified light, where the state of duality vanishes instantly. It further asks rhetorically if scent can remain separate from camphor or light from the sun, implying that a devotee who relinquishes their "I-ness" becomes equal and one with Sai, leaving no duality between them.