Love is sufficient of itself, it gives pleasure by itself and because of itself. It is its own merit, its own reward. Love looks for no cause outside itself, no effect beyond itself. Its profit lies in its practice. I love because I love, I love that I may love. Love is a great thing so long as it continually returns to its fountainhead, flows back to its source, always drawing from there the water which constantly replenishes it. Of all the movements, sensations and feelings of the soul, love is the only one in which the creature can respond to the Creator and make some sort of similar return however unequal it may be. For when God loves, all he desires is to be loved in return; the sole purpose of his love is to be loved, in the knowledge that those who love him are made happy by their love of him.
The Bridegroom’s love, or rather the love which is the Bridegroom, asks in return nothing but faithful love. Let the beloved, then, love in return. Should not a bride love, and above all, Love’s bride? Could it be that Love not be loved?
Rightly then does she give up all other feelings and give herself wholly to love alone; in giving love back, all she can do is to respond to love. And when she has poured out her whole being in love, what is that in comparison with the unceasing torrent of that original source? Clearly, lover and Love, soul and Word, bride and Bridegroom, creature and Creator do not flow with the same volume; one might as well equate a thirsty man with the fountain.
Or are we to doubt that the soul is loved by the Word first and with a greater love?
(From a sermon of St Bernard of Clairvaux)