These souls have likewise the ‘hebetudo mentis’ (deadening of the mind) and the natural roughness which every man contracts through sin, and the distraction and outward clinging of the spirit, which must be enlightened, refined and recollected by the afflictions and perils of that night. These habitual imperfections belong to all those who have not passed beyond this state of the proficient; they cannot coexist, as we say, with the perfect state of union through love.
To actual imperfections all are not liable in the same way. Some, whose spiritual good is so superficial and so readily affected by sense, fall into greater difficulties and dangers, which we described at the beginning of this treatise. For, as they find so many and such abundant spiritual communications and apprehensions, both in sense and in spirit wherein they often times see imaginary and spiritual visions (for all these things, together with other delectable feelings, come to many souls in this state, wherein the devil and their own fancy very commonly practise deceptions on them), and, as the devil is apt to take such pleasure in impressing upon the soul and suggesting to it the said apprehensions and feelings, he fascinates and deludes it with great ease unless it takes the precaution of resigning itself to God, and of protecting itself strongly, by means of faith, from all these visions and feelings. For in this state the devil causes many to believe in vain visions and false prophecies; and strives to make them presume that God and the saints are speaking with them; and they often trust their own fancy. And the devil is also accustomed, in this state, to fill them with presumption and pride, so that they become attracted by vanity and arrogance, and allow themselves to be seen engaging in outward acts which appear holy, such as raptures and other manifestations. Thus they become bold with God, and lose holy fear, which is the key and the custodian of all the virtues; and in some of these souls so many are the falsehoods and deceits which tend to multiply, and so inveterate do they grow, that it is very doubtful if such souls will return to the pure road of virtue and true spirituality. Into these miseries they fall because they are beginning to give themselves over to spiritual feelings and apprehensions with too great security, when they were beginning to make some progress upon the way.
There is much more that I might say of these imperfections and of how they are the more incurable because such souls consider them to be more spiritual than the others, but I will leave this subject. I shall only add, in order to prove how necessary, for him that would go farther, is the night of the spirit, which is purgation, that none of these proficients, however strenuously he may have laboured, is free, at best, from many of those natural affections and imperfect habits, purification from which, we said, is necessary if a soul is to pass to Divine union. —St John of the Cross ‘Dark Night of the Soul’