The barzakh, or the divide, is a mental construct, an intangible entity. It is understood but not witnessed, known but not realized. It is a presence between two platforms that resides intellectually, not physically, pertaining to its unique nature.
Much like an isthmus connecting yet dividing two lands, created out of both, the barzakh mediates between two opposing matters; to judge them with relevance to its own code and presence between both entities.
The barzakh, to Ibn Arabi, is a mental conception that both connects and separates.
This concept enables Ibn Arabi to give the barzakh -this illusion- a cerebral existential dimension without stumbling upon any truthful tangible multiplicity.
The barzakh is susceptible to all manner of paradoxical traits, assembling contradictory pairs. Given that Ibn Arabi believes in a primary duality between the deity and the universe; the only median capable of receiving both sides within itself is the illusion of the barzakh.
This illusion hence becomes a whole possible reality at the center of all secondary dualities that stem from that of the deity and the universe.
The illusion can then be given several names, such as the reasonable truth/reality and the world of the unknown. This multitude of names represents the different aspects of one real existence.
We can distinguish with Ibn Arabi between the two sides of this reasonable truth/reality; that which is called the illusion, the barzakh or the world of the unknown. The other side is what we can call the existential illusion, with its physical and metaphysical sides. Ibn Arabi calls them the connected illusion and the disconnected illusion.
The connection between them is not that of separation, but rather one that represents two sides to one truth/reality, what connects them is the connected part of the disconnected whole.