Insight from Katie, from Tozer, from Kempis

From A.W. Tozer book "the Pursuit of God"

GUARD YOUR EMOTIONS
Christ: My son, do not trust your affections, for they are changeable and inconstant. All your life your are subject to change, even against your inclination. At one time cheerful, at another sad; now peaceful, now troubled; now full devotion, now wholly lacking it; now zealous, now slothful; now grave, now happy. But the wise man, who is well versed in spiritual matters, stands above these changing emotions. He pays small regard to his momentary feelings and whims, but directs all the powers of his mind towards the right and true end. Thus, having fixed his gaze and kept his intention constantly on Me, he can remain single in purpose and unshaken under all circumstances.
Thomas a Kempis