He who has been granted the grace of spiritual knowledge and yet harbors resentment, rancour or hatred for anybody, is like someone who lacerates his eyes with thorns and thistles. Hence knowledge must be accompanied by love.
Do not befoul your intellect by clinging to thoughts filled with anger and sensual desire. Otherwise you will lose your capacity for pure prayer and fall victim to the demon of listlessness.
It is not food that is evil but gluttony; not childbearing but fornication; not money but cupidity; not glory but vainglory. If this be so there is no evil in anything that is, except wrong use, which results from our mind neglecting to cultivate our nature (the powers of the soul, and their right direction).
Do not be ashamed to reveal your scabs to your spiritual director. Be prepared as well to accept from him disgrace for your sins, so that by being disgraced, you might avoid eternal shame.
Unless curbed by the fear of God that accompanies the practice of the virtues, spiritual knowledge leads to vanity; for it encourages the person puffed up by it to regard as his own what has merely been lent to him, and to use his borrowed intelligence to win praise for himself. But when his practice of the virtues increases concomitantly with his longing for God, and he does not arrogate to himself more spiritual knowledge than is needed for the task in hand, then he is made humble, reduced to himself by principles which are beyond his capacity.
When the intellect is pure, sometimes God Himself approaches and teaches it; and sometimes the angelic powers, or the nature of the created things that it contemplates, suggests holy things to it.
St. Paul ... says, ... 'By judging another you condemn yourself' (Rom. 2:1). But men have given up weeping for their own sins and have taken judgment away from the Son. They themselves judge and condemn one another as if they were sinless.
If you harbor rancor against anybody, pray for him and you will prevent the passion from being aroused; for by means of prayer you will separate your resentment from the thought of the wrong he has done you. When you have become loving and compassionate towards him, you will wipe the passion completely from your soul.
Love and self-control free the soul from passions; spiritual reading and contemplation deliver the intellect from ignorance; and the state of prayer brings it into the presence of God Himself.
Almsgiving heals the soul's incensive power; fasting withers sensual desire; prayer purifies the intellect and prepares it for contemplation of created beings. For the Lord has given us commandments which correspond to the powers of the soul.
The person who truly wishes to be healed is he who does not refuse treatment. This treatment consists of the pain and distress brought on by various misfortunes. He who refuses them does not realize what they accomplish in this world or what he will gain from them when he departs this life.