"Marriage is not only the fulfillment of the immediate love which brings a man and woman together, it is also the slow transfiguration of that love through the experiences of a common reality. Early love does not yet see this reality for the pull of the heart and senses bewitches it. Only gradually does reality establish itself, when eyes have been opened to the shortcomings and failures revealed by everyday life. He who can accept the other then, as he really is, in spite all disappointments, who can share the joys and plagues of daily life with him just as he has shared the great experience of early love, who can walk with him before God and with God’s strength, will achieve second love, the real mystery of marriage."
A timeless essay on Christian marriage by the late Fr Roman Guardini, a favorite of Benedict XVI and one of the great wise men of our Church.
You can find it here: