Four years ago, our oldest was preparing for marriage. It was an exciting time for us and as the Catholic momma, I got out the information on Catholic weddings along with the Emily Post's "Wedding Etiquette" my mom sent me.
A very interesting tidbit about the ceremony that I didn't know was about the kiss. There, on page 356, is a little box that explains this tradition:
"the sacramentality of the body is a visible sign for us of invisible realities concerning God and the deepest meaning of our existence. Our bodies make the invisible love of God visible."