Speaks of the first cause of this night, which is that of the privation of the desire in all things, and gives the reason for which it is called night.

We here describe as night the privation of every kind of pleasure which belongs to the desire; for, even as night is naught but the privation of light, and, consequently, of all objects that can be seen by means of light, whereby the visual faculty remains unoccupied [Lit., without anything (sc. to do).’] and in darkness, even so likewise the mortification of desire may be called night to the soul. For, when the soul is deprived of the pleasure of its desire in all things, it remains, as it were, unoccupied and in darkness. For even as the visual faculty, by means of light, is nourished and fed by objects which can be seen, and which, when the light is quenched, are not seen, even so, by means of the desire, the soul is nourished and fed by all things wherein it can take pleasure according to its faculties; and, when this also is quenched, or rather, mortified, the soul ceases to feed upon the pleasure of all things, and thus, with respect to its desire, it remains unoccupied and in darkness.

2. Let us take an example from each of the faculties. When the soul deprives its desire of the pleasure of all that can delight the sense of hearing, the soul remains unoccupied and in darkness with respect to this faculty. And, when it deprives itself of the pleasure of all that can please the sense of sight, it remains unoccupied and in darkness with respect to this faculty also. And, when it deprives itself of the pleasure of all the sweetness of perfumes which can give it pleasure through the sense of smell, it remains equally unoccupied and in darkness according to this faculty. And, if it also denies itself the pleasure of all food that can satisfy the palate, the soul likewise remains unoccupied and in darkness. And finally, when the soul mortifies itself with respect to all the delights and pleasures that it can receive from the sense of touch, it remains, in the same way, unoccupied and in darkness with respect to this faculty. So that the soul that has denied and thrust away from itself the pleasures which come from all these things, and has mortified its desire with respect to them, may be said to be, as it were, in the darkness of night, which is naught else than an emptiness within itself of all things.

3. The reason for this is that, as the philosophers say, the soul, as soon as God infuses it into the body, is like a smooth, blank board [Blank board’: Sp., tabla rasa; Lat., tabula rasa.] upon which nothing is painted; and, save for that which it experiences through the senses, nothing is communicated to it, in the course of nature, from any other source. And thus, for as long as it is in the body, it is like one who is in a dark prison and who knows nothing, save what he is able to see through the windows of the said prison; and, if he saw nothing through them, he would see nothing in any other way. And thus the soul, save for that which is communicated to it through the senses, which are the windows of its prison, could acquire nothing, in the course of nature, in any other way.

4. Wherefore, if the soul rejects and denies that which it can receive through the senses, we can quite well say that it remains, as it were, in darkness and empty; since, as appears from what has been said, no light can enter it, in the course of nature, by any other means of illumination than those aforementioned. For, although it is true that the soul cannot help hearing and seeing and smelling and tasting and touching, this is of no greater import, nor, if the soul denies and rejects the object, is it hindered more than if it saw it not, heard it not, etc. Just so a man who desires to shut his eyes will remain in darkness, like the blind man who has not the faculty of sight. And to this purpose David says these words: Pauper sum ego, et in laboribus a indenture mea. Psalm lxxxvii, 16 [A.V., lxxxviii, 15]. Which signifies: I am poor and in labours from my youth. He calls himself poor, although it is clear that he was rich, because his will was not set upon riches, and thus it was as though he were really poor. But if he had not been really poor and had not been so in his will, he would not have been truly poor, for his soul, as far as its desire was concerned, would have been rich and replete. For that reason we call this detachment night to the soul, for we are not treating here of the lack of things, since this implies no detachment on the part of the soul if it has a desire for them; but we are treating of the detachment from them of the taste and desire, for it is this that leaves the soul free and void of them, although it may have them; for it is not the things of this world that either occupy the soul or cause it harm, since they enter it not, but rather the will and desire for them, for it is these that dwell within it.

5. This first kind of night, as we shall say hereafter, belongs to the soul according to its sensual part, which is one of the two parts, whereof we spoke above, through which the soul must pass in order to attain to union.

6. Let us now say how meet it is for the soul to go forth from its house into this dark night of sense, in order to travel to union with God.