You see, a perfect number to a Semite would be seven, or twelve. Those are perfect numbers. Seven sacraments in our Church. But six stone water jars. His first miracle involved wine.
Wine is the symbol of joy, of life.
It was appropriate that His very First miracle would involve wine. John says that it all happened at a wedding feast. Jesus himself appropriates the name. It's not proper to fast while the bridegroom is with you, but when he leaves, then there will be plenty of time for fasting. We remember that the Old Testament so often described God as being the bridegroom to His bride, Israel.