The principle and source of the virtues is a good disposition of the will, that is to say, an aspiration for goodness and beauty. God is the source and ground of all supernal goodness. Thus the principle of goodness and beauty is faith or, rather, it is Christ, the rock of faith, Who is the principle and foundation of all the virtues. On this rock we stand and on this foundation we build every good thing.
Fasting needn't be limited to abstinence from food alone, because true fasting is departure from evil deeds. Forgive your neighbor any insult, abstain from causing your neighbor offence, abstain from irritation, from senseless sorrows, from fear, wrath, and so on. ‘True fasting is alienation from evil, temperance of the tongue, setting aside of wrath, casting out of lust, idle talk, lies, and oath-breaking’…This is a true and pleasing fast for the Lord. Departing from these vices and from a corrupt state is what comprises a true fast.
If the soul is vigilant and withdraws from all distraction and abandons its own will, then the spirit of God invades it and it can conceive because it is free to do so.
Courage does not consist in defeating and oppressing one's neighbor, for this is overbearingness, which oversteps the bounds of courage. Nor again does it consist in fleeing terrified from the trials that come as a result of practicing the virtues; for this is cowardice and falls short of courage. Courage itself consists in persisting in every good work and in overcoming the passions of soul and body. For our struggle is not against flesh and blood, that is, against men, as was the case with the Jews of old, where to conquer other nations was to do the work of God; it is against principalities and powers, that is, against the unseen demons (Ephesians 6:12). He who is victorious conquers spiritually; otherwise he is conquered by the passions. The warfare described in the Old Testament prefigures our spiritual warfare. These two passions of overbearingness and cowardice, though they appear to be opposites, are both caused by weakness. Overbearingness pulls one upwards and is outwardly something startling and frightening, like some powerless bear, while cowardice flees like a chased dog. No one who suffers from either of these two passions puts his trust in the Lord, and therefore he cannot stand firm in battle, whether he is overbearing or cowardly. But the righteous man is as bold as a lion (Proverbs 28:1) in Christ Jesus our Lord, to whom be glory and dominion throughout the ages.
Obedience is the medicine compounded of virtues, giving life to those who drink it, and the knife which, with one cut, cleans festering wounds. A man who, in faith and simplicity, has chosen to wield this knife, at once cuts off all passions, more completely than anyone...
No one on this earth can avoid affliction; and although the afflictions which the Lord sends are not great, men imagine them beyond their strength, and are crushed by them. This is because they will not humble their souls, and commit themselves to the will of God. But the Lord Himself guides with His grace those who are given over to God's will, and they bear all things with fortitude for the sake of God, Whom they have so loved, and with Whom they are glorified forever. It is impossible to escape tribulation in this world, but the man who is given over to the will of God bears tribulation easily, seeing it but putting his trust in the Lord, and so his tribulations pass.
Those who struggle, regain their original state by keeping two commandments - obedience and fasting; for all evil entered into the generation of mortals through practices opposed to them. Moreover, those who keep the commandments through obedience ascend to God more quickly, and those who keep them through fasting - more slowly. Besides, obedience is more suitable for beginners, and fasting for those on the way, who possess courage and vision of mind. But in fulfilling the commandments it is given to very few always to obey God undeceived, and even for the most valiant this achievement is very difficult.
Continually take careful note of your inner intention: watch carefully which way it inclines, and discover whether it is for God and the sake of goodness itself and the benefit of your soul...
The Lord says: 'In your patience possess ye your souls' (Luke 21:19). He did not say: in your fast or in your vigil. By patience I mean that patience which is of God and is the queen of virtues and the basis of manly valor. It is in itself - peace amid strife, stillness in the midst of storm and an impregnable position for those who have acquired it.
There is no shorter ascent to the royal and Divine mansions...than through subduing the five passions hostile to obedience, namely: disobedience, argumentativeness, self-gratification, self-justification and pernicious high opinion of oneself...Disobedience is the mouth of hell; argumentativeness its tongue, whetted like a sword; self-gratification is its sharp teeth; self-justification its throat; high opinion of oneself, which casts one into hell, is the belching of its all-devouring belly. But he who, through obedience, conquers the first, by one stroke cuts off all the rest and with one stride reaches heaven.
Grace abides in us from the time of our holy baptism; but, through our inattention, vanity and the wrong life we lead it is stifled, or buried. When a man resolves to lead a righteous life and is zealous for salvation, the fruit of his whole labor is, therefore, the restoration in force of this gift of grace. It comes to pass in a two-fold manner: first, this gift becomes revealed through many labors in following the commandments; insofar as a man succeeds in following the commandments, this gift becomes more radiant and brilliant. Secondly, it manifests and reveals itself through constant invocation of the Lord Jesus in prayer. The first method is powerful, but the second is more so, so that even the first method gains power through it. Thus, if we sincerely wish to open the seed of grace concealed in us, let us hasten to train ourselves in this latter exercise of the heart, and let us have only this work of prayer in our heart, without forms, without images, till it warms our heart and makes it burn with ineffable love of the Lord.