Contemplative Prayer: the Thoughtlessness of the Cloud of Unknowing of the Desert Fathers

[...] take thee but a little word of one syllable: for so it is better than of two, [...]

This word shall be thy shield and thy spear, whether thou ridest on peace or on war. With this word, thou shalt beat on this cloud and this darkness above thee. With this word, thou shall smite down all manner of thought under the cloud of forgetting.

Underhill, Evelyn, The Cloud of Unknowing, 2nd Edition, London: John M. Watkins,1922, pp. 93-94.