St John of the Cross
"The Dark night of the soul" CHAPTER XI part II

Oh, happy chance!

3. When God leads the soul into this night of sense in order to purge the sense of its lower part and to subdue it, unite it and bring it into conformity with the spirit, by setting it in darkness and causing it to cease from meditation (as He afterwards does in order to purify the spirit to unite it with God, as we shall afterwards say), He brings it into the night of the spirit, and (although it appears not so to it) the soul gains so many benefits that it holds it to be a happy chance to have escaped from the bonds and restrictions of the senses of or its lower self, by means of this night aforesaid; and utters the present line, namely: Oh, happy chance! With respect to this, it behoves us here to note the benefits which the soul finds in this night, and because of which it considers it a happy chance to have passed through it; all of which benefits the soul includes in the next line, namely:

I went forth without being observed.

4. This going forth is understood of the subjection to its sensual part which the soul suffered when it sought God through operations so weak, so limited and so defective as are those of this lower part; for at every step it stumbled into numerous imperfections and ignorances, as we have noted above in writing of the seven capital sins. From all these it is freed when this night quenches within it all pleasures, whether from above or from below, and makes all meditation darkness to it, and grants it other innumerable blessings in the acquirement of the virtues, as we shall now show. For it will be a matter of great pleasure and great consolation, to one that journeys on this road, to see how that which seems to the soul so severe and adverse, and so contrary to spiritual pleasure, works in it so many blessings. These, as we say, are gained when the soul goes forth, as regards its affection and operation, by means of this night, from all created things, and when it journeys to eternal things, which is great happiness and good fortune: first, because of the great blessing which is in the quenching of the desire and affection with respect to all things; secondly, because they are very few that endure and persevere in entering by this strait gate and by the narrow way which leads to life, as says Our Saviour. The strait gate is this night of sense, and the soul detaches itself from sense and strips itself thereof that it may enter by this gate, and establishes itself in faith, which is a stranger to all sense, so that afterwards it may journey by the narrow way, which is the other night—that of the spirit—and this the soul afterwards enters in order in journey to God in pure faith, which is the means whereby the soul is united to God. By this road, since it is so narrow, dark and terrible (though there is no comparison between this night of sense and that other, in its darkness and trials, as we shall say later), they are far fewer that journey, but its benefits are far greater without comparison than those of this present night. Of these benefits we shall now begin to say something, with such brevity as is possible, in order that we may pass to the other night.