Wedding vows are not a declaration of present love but a mutually binding promise of future love. A wedding should not be primarily a celebration of how loving you feel now—that can be safely assumed. Rather, in a wedding you stand up before God, your family, and all the main institutions of society, and you promise to be loving, faithful, and true to the other person in the future, regardless of undulating internal feelings or external circumstances.

~~Tim Keller, "The Meaning of Marriage"