(Al 'Arifin/'Urufa). They see and recognize Allah wherever they look. The knowers are bewildered. But this is not the bewilderment of being lost, rather it is the bewilderment of having found Allah. They know that He cannot be known. The knowers are nothing because they are everything.
(Thuhur). Manifestation or outwardness or appearance. Thuhur is the Self-disclosure of Allah in the creation of the universe through His Name Al Thahir, the Manifest. This is in contrast to His Self Disclosure in the inward dimension of His creatures through His Name, Al -Batin, the Inward.
(Idrak). "Allah is the Light of the heavens and the earth" and it is through the Light of Allah that all perception takes place. "Allah took a handful of His Light and said to it, "Be! Muhammad'". The creation, which is the outward manifestation of the Hidden Treasure, is seen and known through the Holy Prophet Muhammad. But, only the knowers know that they are seeing it through the Reality of Muhammad. Without him all is darkness. 'Light the world, too long in darkness, with Muhammad's radiant name'. The Chosen One, Al Mustapha, said, "Who has seen me, has seen Allah". Existence is the Reality of Muhammad. For perception to take place there must be light.