Fourth Week of Lent. "Dark Night of the Soul" by St. John of the Cross.
Chapter ix
Of the signs by which it will be known that the spiritual person is walking along the way of this night and purgation of the sense
4. For the cause of this aridity is that God transfers to the spirit the good things and the strength of the senses, which, since the soul's natural strength and senses are incapable of using them, remain barren, dry and empty. For the sensual part of a man has no capacity for that which is pure spirit, and thus, when it is the spirit that receives the pleasure, the flesh is left without savour and is too weak to perform any action. But the spirit, which all the time is being fed, goes forward in strength, and with more alertness and solicitude than before, in its anxiety not to fail God; and if it is not immediately conscious of spiritual sweetness and delight, but only of aridity and lack of sweetness, the reason for this is the strangeness of the exchange; for its palate has been accustomed to those other sensual pleasures upon which its eyes are still fixed, and, since the spiritual palate is not yet made ready or purged for such subtle pleasure, until it finds itself becoming prepared for it by means of this arid and dark night, it cannot experience spiritual pleasure and good, but only aridity and lack of sweetness, since it misses the pleasure which aforetime it enjoyed so readily.
5. These souls whom God is beginning to lead through these solitary places of the wilderness are like to the children of Israel, to whom in the wilderness God began to give food from heaven, containing within itself all sweetness, and, as is there said, it turned to the savour which each one of them desired. But withal the children of Israel felt the lack of the pleasures and delights of the flesh and the onions which they had eaten aforetime in Egypt, the more so because their palate was accustomed to these and took delight in them, rather than in delicate sweetness of the angelic manna; and they wept and sighed for the fleshpots even in the midst of the food of Heaven. To such depth does the vileness of our desires descend that it makes us to long for our own wretched food and to be nauseated by the indescribable blessings of Heaven.