As for me, I believe that only God can bless your marriage. In register office you just do banal things, this document doesn't mean so much. You should realize that in another level of thinking. You should feel it in your soul. Ordinary person can't bless you so strong like it can do God.
I understand it like this: a special woman was born for a special man, and a special man was born a special woman. It means that families are made by God. Love is a special feeling granted by God. Every person has his or her own second half and his or her aim to find it.