What analogy does Chapter 18 use to describe the experience of approaching a Sadguru?

Chapter 18 uses a powerful analogy to illustrate the profound transformation that occurs when a devotee approaches a true Sadguru. It compares the seeker to a doll made of salt that enters the ocean for a bath. Just as the salt doll dissolves and becomes one with the ocean, unable to return to its original form, a seeker who truly surrenders to the Guru merges with them. As explained in the opening stanzas of Chapter 18, this signifies the complete dissolution of the individual ego and the merging of the self with the universal consciousness that the Guru represents.