All that is said above and whatever is necessary for salvation cannot be better, more immediately and more securely achieved than by love, through which whatever is lacking of what is necessary for salvation can be made good.
In love we possess the fullness of all good and the realisation of our highest longing is nor denied us. After all it is love alone by which we turn back to God, are changed into God, cleave to God, and are united to God in such a way that we become one spirit with him, and are by him and through him made blessed here by grace and hereafter in glory.
Now love is such that it cannot rest except in the beloved, but it does when it wins the beloved in full and peaceful possession. For love, which itself is charity, is the way of God to men and the way of man to God. God cannot house where there is no love. So if we have love, we have God, for God is love. Furthermore nothing is sharper than love, nothing is more subtle, nothing more penetrating. It will not rest until it has by its very nature penetrated the whole power, the depth and the totality of the loved one. It wants to make itself one with the beloved, and itself, if it were possible, to be what the beloved is too.
Thus it cannot bear that anything should stand between itself and the beloved object, which is God, but pressed eagerly towards him. As a result it never rests until it has left everything else behind and come to him alone.
For the nature of love is of a unitive and transforming power which transforms the lover into what he loves, or alternatively, makes the lover one with the other, and vice versa, in so far as is possible.
This is manifest in the first place with regard to the mental powers, depending on how much the beloved is in the lover, in other words depending on how sweetly and delightfully the beloved is recalled in the mind of the lover, and in direct proportion, that is, with how much the lover strives to grasp all the things that relate to the beloved not just superficially but intimately, and to enter, as it were, into his innermost secrets.
It is also manifest with regard to the emotional and affective powers when the beloved is said to be in the lover, in other words when the desire to please the beloved is found in the will and established within by the happy enjoyment of him. Alternatively, the lover is in the beloved when he is united with him by all his desire and compliance in agreement with the beloved’s willing and not willing, and finds his own pleasure and pain in that of the beloved.
For love draws the lover out of himself (since love is strong as death), and establishes him in the beloved, causing him to cleave closely to him. For the soul is more where it loves than where it lives, since it is in what it loves in accordance with its very nature, understanding and will, while it is in where it lives only with regard to form, which is even true for animals as well.
There is nothing therefore which draws us away from the exterior senses to within ourselves, and from there to Jesus Christ and things divine, more than the love of Christ and the desire for the sweetness of Christ, for the experience, awareness and enjoyment of the presence of Christ’s divinity. For there is nothing but the power of love which can lead the soul from the things of earth to the lofty summit of heaven.
Nor can anyone attain the supreme beatitude unless summoned to it by love and yearning. Love after all is the life of the soul, the wedding garment and the soul’s perfection, containing all the law and the prophets and our Lord’s teaching. That is why Paul says to the Romans, Love is the fulfilling of the law, (Rom. 13.8) and in the first letter to Timothy, The end of the commandment is love. (1 Timothy 1.5)