Can you explain the concept of non-duality between a devotee and Sai as described in Chapter 52, including the analogies used?

Chapter 52 beautifully illustrates the principle of non-duality, where a devotee who takes complete refuge at Sai's feet loses their sense of a separate self. The text employs several powerful analogies to explain this union. It compares a devotee to a river that, upon entering the ocean, forgets its 'river-ness' and becomes one with the ocean itself. Another metaphor used is of two lamps whose flames merge to become a single, unified light, causing the state of duality to vanish instantly. As this chapter describes, just as scent cannot be separated from camphor or luster from gold, a devotee who relinquishes their 'I-ness' becomes equal to and one with Sai.