What metaphor does Chapter 18 use to illustrate the experience of a devotee approaching the Sadguru?

Chapter 18 uses a profound metaphor to explain the complete merging that occurs when a devotee truly approaches the Guru. The text poses a rhetorical question: "If a doll made of salt enters the ocean to take a bath, can it ever return?" It immediately answers that this can never happen. The chapter then explicitly states, "similar is the case with one who approaches You." This analogy powerfully conveys the idea of the individual ego or self dissolving completely into the boundless consciousness of the Guru, losing its separate identity and becoming one with the whole, much like a salt doll becomes one with the ocean.