Chapter 18 uses a metaphor involving a salt doll and the ocean. What is the meaning of this comparison in relation to a devotee approaching the Guru?

Chapter 18 explains the relationship between a devotee and the Guru using a powerful metaphor. It poses the question: if a doll made of salt enters the ocean to take a bath, can it ever return? The text answers that this can never happen, and this is similar to the case of a person who approaches the Sadguru. This illustrates the complete merging and dissolution of the individual self into the vastness of the Guru's grace and consciousness, losing one's separate identity to become one with the divine, just as the salt doll dissolves and becomes one with the ocean.