Oh, what a sheer grace it is for the soul to be freed from the house of its senses! This fortune, in my opinion, can only be understood by the person who has savoured it. For then a person will become clearly aware of the wretched servitude and the many miseries suffered when subject to the activity of the faculties and appetites. It will be understood how the life of the spirit is true freedom and wealth.
In the measure that the soul walks in darkness and emptiness in its natural operations, it walks securely.
Oh, then, spiritual soul, when you see your appetites darkened, your inclinations dry, your faculties incapacitated, do not be afflicted; think of this as a grace, since God is freeing you from yourself.
Indeed, the soul is getting lost from what it knew and tasted, and going by a way in which it neither knows nor tastes.
Another more basic reason the soul walks securely in darkness is that this light, or obscure wisdom, so absorbs and engulfs the soul in the dark night of contemplation and brings it so near God that it is protected and freed from all that is not God.
The spiritual light is so bright and so transcendent that it blinds and darkens the natural intellect as this latter approaches it.
Since the wisdom of this contemplation is the language of God to the soul, of Pure Spirit to pure spirit, all that is less than spirit, such as the sensory, fails to perceive it. Consequently this wisdom is secret to the senses; they have neither the knowledge nor the ability to speak of it, nor do they even desire to do so because it is beyond words.
- St John of the Cross. Dark Night II