That is why He went to this wedding feast. Here He reveals what a glorious kingdom He will realize for us. He does by changing water into wine. The message is that this present earthly creation is going to be changed into a far more glorious realm than what Adam and Eve enjoyed before they fell into sin. Water is tasteless, and wine is very tasty.
Water is colorless, and wine has a rich color.
He is going to work in us, and what a beautiful world He will bring into being after His death, resurrection, ascension into heaven, and coming again upon the clouds of heaven. What a beautiful kingdom we will dwell in, when He brings us into the new Jerusalem. Be of good courage. Christ's hour will come, when He will return and bring us into that Kingdom of Heaven with all its bliss and beauty. For our earthly life we need bread.