How does Chapter 52 use analogies to explain the concept of a devotee merging with the Guru and achieving non-duality?

Chapter 52 employs several powerful analogies to illustrate the principle of non-duality. It compares a devotee taking refuge at Sai's feet to a river entering the ocean, where it forgets its "river-ness" and becomes the ocean itself. Another analogy is of salt entering the ocean and becoming one with it instantly. Similarly, the chapter describes two lamps embracing to become one light, where the state of duality vanishes. Through these examples, the text explains that when devotees relinquish their "I-ness," they become equal with Sai, and no sense of duality remains.