How does Chapter 52 describe the concept of non-duality and the ultimate union between a devotee and Sai?

Chapter 52 uses several beautiful analogies to illustrate the principle of non-duality. It compares the devotee's union with Sai to a river entering the ocean and becoming the ocean itself, or salt dissolving instantly into the sea. Another powerful image used is of two lamps embracing to become one single light, immediately vanquishing the state of duality. As explained in this chapter, when a devotee truly takes refuge at Sai’s feet, their individual "I-ness" is relinquished, and they become equal with Him. This merging eliminates any sense of separation, leading to a state of complete unity.