The Adornment of the Spiritual Marriage, by Jan van Ruysbroeck, , at sacred-texts.com
You may remember that I showed heretofore how all saints and all good men are united with God through means. Now I will further show to you how they are all united with God without means. But in this life there are but few who are meet for this, and sufficiently enlightened to feel and understand it. And therefore, whosoever wishes to find and to feel within himself those three unions of which I am going to speak, he must live entirely and wholly in God, so that he may satisfy and be amenable to the grace and the stirring of God, in all virtues and inward exercises. And he must be lifted up through love, and die in God to himself and all his works; so that he yields himself up with all his powers, and submits to the transformation through the incomprehensible Truth which is God Himself. And to that end it is needful that living he should go forth in the virtues, and dying should enter into God. And in these two things his perfect life consists; and these two are joined together within him like matter and form, like body and soul. 86 And as he exercises himself in them so he becomes clear in understanding, and rich and overflowing in feeling; for he has joined himself to God with uplifted powers, with true intention, with his heart's desire, with ceaseless craving, with the living ardour of his spirit and of his nature. And since he thus exercises himself and keeps himself in the Presence of God, love overpowers him: in whatsoever manner he moves, he is ever growing in love and in all virtues. But love always moves each man according to the profit and the ability of each.