How does Chapter 52 explain the concept of non-duality, where a devotee merges with Sai?

Chapter 52 uses several vivid analogies to illustrate the profound spiritual concept of non-duality. It explains that when a devotee takes refuge at Sai's feet, they relinquish their "I-ness" or ego, and no sense of duality remains. The chapter compares this process to a river entering the ocean and becoming the ocean itself, or salt dissolving instantly into the sea. Another powerful image used in Chapter 52 is of two lamps embracing to become one unified light, where the state of duality vanishes. The text asks rhetorically if scent can be separate from camphor or light from the sun, reinforcing that upon taking refuge in Sai, the devotee becomes one with Him in essence.