Chapter 52 uses several analogies to describe the relationship between a devotee and Sai. Can you explain the concept of non-duality using these examples?

Chapter 52 beautifully illustrates the concept of non-duality, or the merging of the devotee with the Divine, through several powerful analogies. It explains that when a devotee takes refuge at Sai's feet, any sense of a separate self or duality vanishes. The chapter compares this to a river entering the ocean and forgetting its 'river-ness' to become the ocean itself. Other examples mentioned include two lamps embracing to become one unified light, the scent being inseparable from camphor, and salt instantly becoming one with the ocean upon entering it. As detailed in Chapter 52, the ultimate state is one where the devotee relinquishes their 'I-ness' and becomes equal with Sai, achieving a state of complete unity.