I can and do believe in the real presence, but also that the elements still exist as bread and wine. As the Lutheran catechism states, the Body and Blood are present in with and under the bread and wine. And to worship or adore a wafer is blasphemous. We worship Christ alone, not the physical vehicle He comes to us in.
I do not understand the mystery of communion, but if one says it is merely symbolic, I think one misses the depth Christ intended. I do not understand in human fashion much of what God does. However, again, I do not think it is proper to worship the elements in the Supper, only the Lord who chooses to come to us in this manner.
And there is most definitely not another sacrificial offering of Christ in communion - this is a commemoration and celebration, not an offering. Christ died once for all. It is finished.
Did the Jews miss the depth that God intended when they celebrated the passover ?