How does the salt doll analogy in Chapter 18 connect to the initial salutations praising the Sadguru as the 'supreme Eternal one'?

Chapter 18 opens by hailing the Sadguru as the 'supreme Eternal one,' 'Beginningless and Endless,' and 'beyond duality.' The subsequent analogy of a salt doll entering the ocean serves to illustrate this profound nature. The salt doll represents the individual ego or self, and the ocean represents the Sadguru, the infinite and eternal Brahman. The text explains that the doll, upon entering, can never return, signifying a complete dissolution of individual identity into the whole. This directly connects to the Sadguru's praised nature; approaching one who is 'beyond duality' means the seeker's own duality and separateness must cease to exist, leading to a state of complete merger, as described in Chapter 18.