A Rock of Salt dived into the ocean

                    A Rock of Salt dived into the ocean 
To Know the depth of the Ocean of Super-Consciousness.

                Cahli jo putali loan ki, Thaah sindhu ka lain
                Aapuhi gal paani bhayi, Ulat kahai ko bain
                                                              (Satguru Kabeer ji)
A small rock of salt dived into the ocean to find out the depth and everything else about it. But soon, it dissolved in the ocean's waters, and itself became a part of the ocean. Now, who will come back to tell the story - all about the ocean?
Here, the ocean is the symbol of the Divine, Supreme, Universal power and the rock of salt is the soul.
Just as the ocean is the source of salt - the source of the soul is the Divine Supreme power known as Ishwar or Paramatma. 
Just as the salt is a part of the ocean - the soul is a part of the Divine.
The rock of salt has a different identity until it is out of the ocean. 
Similarly, the soul creates its own individual identity - separate from God.
As soon as the salt goes into the ocean, its separate identity ceases to exist. 
Similarly, as soon as the soul immerses itself in the divine, it becomes one with the divine. 
The duality ends - only Advaita (non-duality) remains. 

Sadhguru Kabir ji explains this fact further:
          Jal me kumbh, kumbh me jal hai - baahar bheetar paani 
          Phootaa kumbh, jal jalhi smaana - eh tath kathyo Gyaani

If we place a clay pot in the ocean, there will be water everywhere- inside and outside of the clay pot.
However, even though there is water in and outside of the clay pot - the water within the clay pot remains separate from the outer water.
The reason for this separation is the shape and form of that clay pot or the pitcher. As soon as the pitcher breaks, the water inside the pitcher gets merged in the vast waters of the ocean - that is outside of it. The difference between the two ends.
Here, Kabir ji is pointing to the fact that Brahma (Supreme) is an infinite, all-pervading ocean and the Jeeva, the beings are like small clay pots. 
The Divine water of Consciousness is flowing everywhere - within and outside. The entire universe is filled with the Divine Universal-Consciousness, and a part of the same Divine consciousness exists within all the beings as well. 
But as long as the beings feel imprisoned in this form, color, and shaped pitcher, its existence remains separate.
As soon as the Self becomes free from the captivity of the color, form, and shape, and dips into the infinite Formless Divine, then all the differences end. The distinction vanishes - the soul becomes one with the Supersoul. The ignorance turns into consciousness - the duality vanishes and only Advaita (Non-duality) remains. 
However, This fact can be understood by the Gyanis only.
But, like that nugget of salt, who will come back from there to tell the story of the other side? 
Because that duality, which is necessary to give any report, does not exist anymore. 
Duality can be explained - Non-duality is indescribable. 
                     Mohabbat Asal me 'Makhmoor' vo raaz-e-haqeeqat hai 
                     Samajh me aa gayaa hai aur samjhaaya nahin jaata *
                                           'Rajan Sachdeva '

* This Sher is from a ghazal by Makhmoor Dehalvi