No vision can encompass Him, but He encompasses all vision ...  (Q6:103)
I replied, “Of course.” Then he asked: “Do you all know what 
al-Absār are?” I replied, “Of course.” Then he asked: “What are they?”  I replied, “They are Absār meaning ‘eyes’.”  He said, “The mind in your heart is more powerful than the eyes [with which you see]. Thus it is minds that cannot behold him, while He 
beholds minds.”
To guide Abu Hashim to the hidden meaning of the verse above, Imam al-Ridha (a) first asks him what he understands from the verse. It is worth mentioning that the word Absār here refers to ‘minds’ . Since ‘minds’ which are our most powerful faculty for knowing, cannot behold Him, thus, we cannot truly describe Him.
 
Al-Kafi Vol. 1 Pg 98