To arrive at union with God, the contrarieties which God sends us are absolutely necessary; his purpose is, to consume in us, by means of them, all irregular movements, both within and without. And hence all contempt, ailments, poverty, temptations, and other trials, are all indispensable, to give us the opportunity of fighting; that so, by the way of victory, we may eventually extinguish all inordinate movements, so as to be no more sensible of them; furthermore, until we begin to find contradictions sweet for God's sake, instead of bitter, we shall never arrive at divine union.
--St. Catherine of Bologna