What are the primary metaphors used in Chapter 18 to explain the Guru's grace and the devotee's experience?

Chapter 18 employs two significant metaphors to convey its spiritual message. The first is the analogy of a salt doll entering the ocean. As explained in the chapter, just as the doll dissolves and becomes inseparable from the sea, a devotee who approaches the Guru merges into the Guru's infinite consciousness, losing their separate identity. The second key metaphor, found in Chapter 18, compares the Guru to the rain clouds of the monsoon. This imagery illustrates that the Guru showers the "water of self-bliss" with love upon all seekers, emphasizing the unconditional, abundant, and life-giving nature of the Guru's grace, which is available to everyone.