Can you explain the metaphor of the salt doll used in Chapter 18 and what it signifies for a devotee approaching the Guru?

In Chapter 18, a powerful metaphor is used to illustrate the merging of a devotee with the Guru. The text poses a question: if a doll made of salt enters the ocean for a bath, can it ever return? It concludes this is impossible, stating that a "similar is the case with one who approaches You." This analogy signifies the complete dissolution of the individual ego and identity into the vast, divine consciousness of the Sadguru. It represents a point of no return to the former state of separateness, indicating a total and irreversible spiritual union.