It is by means of these that we attain perfect love, through the grace and compassion of our Lord Jesus Christ, to whom be glory through all the ages. Amen.
John CassianWhen the soul is solidly rooted in... peacefulness, when it is freed of the bonds of every carnal urge, when the unshaking thrust of the heart is toward the one supreme Good, then the words of the apostle will be fulfilled. 'Pray without ceasing,' he said (I Thes. 5:17). 'In every place lift up pure hands, with no anger and no rivalry' (I Tim 2:8). Sensibility is, so to speak, absorbed by this purity. It is reshaped in the likeness of the spiritual and the angelic so that all its dealings, all its activity will be prayer, utterly pure, utterly without tarnish.
John CassianThe second request of the very pure soul is to see the coming of the Father's kingdom (cf. Mt. 6:10). What this means first of all is that each day Christ should reign among holy men. And this happens when the devil's power has been driven out of our hearts through the expulsion of sinful foulness and when God has begun to reign within us amid the good odors of virtue. With fornication vanquished, chastity rules; with anger overcome, peace is king; with pride under foot, humility is sovereign.
John CassianMen seized of the urge to have a knowledge of God and to be pure in mind devote all their gathered energies to this one task. While they still live in the corruption of the flesh they give themselves to that service in which they will persevere when the corruption has been laid aside. And already they come in sight of what the Lord and Savior held out when He said, 'Blessed are the clean of heart, for they will see God' (Mt. 5:8).
John CassianPerfection... is clearly not achieved simply by being naked, by the lack of wealth or by the rejection of honors, unless there is also that love whose ingredients the apostle described (cf. I Cor. 13) and which is to be found solely in purity of heart. Not to be jealous, not to be puffed up, not to act heedlessly, not to seek what does not belong to one, not to rejoice over some injustice, not to plan evil - what is this and its like if not the continuous offering to God of the heart that is perfect and truly pure, a heart kept free of all disturbance?
John Cassian