Riddle this: What does the marriage feast in Cana of Galilee foretell? What do the 12 containers used for....?

Jewish purification witness to? Why are they stone? What does it mean to fill them up with water. What does water turning to wine mean? Why was it on the third day? Who does Mary represent? Why did Jesus say "What does this have to do with me; My time has not yet come?" and yet did it anyways? What the meaning of the response from the master of the feast about the latter wine being better? Please explain this riddle.