But Now You Ask Me A Question:

How shall I think about God and what is God? And to this I can only answer you, I do not know. With your question you have brought me into that same darkness and in that same cloud of unknowing into which I would wish you to be in yourself. Through grace a person can have great knowledge of all other creatures and their works, and even of the works of God and they can think of them all; but of God no person can think. I would therefore leave all those things of which I can think and choose for my love of that thing of which I cannot think.

And why is this so? God may well be loved, but God may not be thought of. God may be reached and held close by means of love, but by means of thought, never. And therefore even though it is good occasionally to think of the kindness and the great worth of God in particular aspects, and even though it is a joy that is a proper part of contemplation, nevertheless in this work it should be cast down and covered with a cloud of forgetting.

You are to step above it with great courage and with determination and with a devout and pleasing stirring of love, and you are to try to pierce that darkness which is above you. You are to strike that thick cloud of unknowing with a sharp dart of longing love; and you are not to retreat no matter what comes to pass.

- The Cloud Of Unknowing