The way to arrive at perfection is that of the disciples, as I said. That is, as Peter and the others shut themselves into the house, so those have done and should do who have attained the love of the Father, who are sons. Those who wish to reach this state should enter the house, and shut themselves in; that is, the house of the knowledge of themselves, which is the cell that the soul should inhabit. Within this cell another cell is found, that of the knowledge of the goodness of God in Himself. So from knowledge of self the soul draws true humility, with holy hatred of the wrong which it has done to its Creator, and by this it attains to true and holy patience. And from the knowledge of God, which it finds in itself, it wins the virtue of most ardent charity: whence it draws holy and loving desires. In this wise it finds vigil and continual prayer--that is, while it abides enclosed in so sweet and glorious a thing as is the knowledge of itself and of God. It keeps vigil, I say, not only with the eye of the body, but with the eye of the soul; that is, the eye of the intellect never sees itself closed, but remains opened upon its Object and ineffable Love, Christ crucified: and there it finds love, and its own guilt. For that guilt, Christ gave us His Blood. Then the soul uplifts itself with deepest devotion, to love what God loves and to hate what He hates. And it directs all its works in God, and does everything to the glory and praise of His Name. This is the continual prayer of which Paul says, "Pray without ceasing." Now this is the way to rise from being only a servant and a friend--that is, from servile fear and from tender love of one's own consolation--and to arrive at being a true servant, true friend, true son. For when one is truly made a son, he does not therefore lose being a servant and true friend; but is a servant and friend in truth, without any regard to himself, or to anything except pleasing God alone.
We said that they abode ten days, and then came the Holy Spirit. So the soul, which wishes to arrive at this perfection, must observe ten days, that is the ten commandments of the law. And with the legal commandments it will observe the Counsels; for they are bound together, and the one cannot be observed without the other. True, those who are in the world must observe the Counsels mentally, through holy desire, and those who are freed from the world must observe them both mentally and actually. Thus, if the soul receives the abundance of the Holy Spirit, with true wisdom of true and perfect light and knowledge, and with fortitude and power to make it strong in every battle, it becomes mighty chiefly against itself, lording it over its own fleshly nature. But all this you could not do if you went roaming about, in much conversation, keeping far from the cell, and neglecting the choir. Whence, considering this, I said to you when you left me that you should study to flee conversation and to visit the cell, and not to abandon the choir or the refectory (so far as might be possible to you), and to keep vigil with humble prayer: and thus to fulfil my desire, when I told you that I desired to see you seek God in truth, without anything between. I say no more to you. Remain in the holy and sweet grace of God. Sweet Jesus, Jesus Love.