Our eyes can only see something finite. That which is without end, in this world, is invisible. The Talmud tells us that there is something in this world that no eye has seen except for G-d. It is beyond our eyes to see. It is a secret, hidden.
Wine is a secret.
Its very name connotes hiddeness. The whole purpose of this world is to reveal. From that moment onward, the entire creation was one revelation after another. All is revealed. Or almost all.