As I work on a graduate course at Regent College I have been reading the works of Teresa of Avila. She was a remarkable person and one who always analyzed her experiences to see if they could be from God or from her own mind. This quote is from her and speaks to using all of our faculties for God.
God gave us faculties for our use; each of them will receive its proper reward. Then do not let us try to charm them to sleep, but permit them to do their work until divinely called to something higher.* – Teresa of Avila
*Fourth Mansions, Ch. 3: Prayer of Quiet, as translated by the Benedictines of Stanbrook (1911), revised and edited by Fr. Benedict Zimmerman