Can you explain the metaphor of the salt doll entering the ocean as described in Chapter 18?

Chapter 18 uses the powerful metaphor of a salt doll to illustrate the experience of approaching the Sadguru. The text asks, 'If a doll made of salt enters the ocean to take a bath, can it ever return?' It answers that this can never happen, as the doll would dissolve and become one with the ocean. The chapter explains that the case is similar for a devotee who approaches the Guru. This analogy signifies the complete dissolution of the individual ego and the merging of the self with the boundless consciousness of the Guru, leading to a state of non-duality from which one does not return to their former limited self.