However, no one in the upper room actually believed the bread was physically his human flesh. No one believed the wine was physically his human blood.
Pure supposition on your part.
They all understood the symbolism he was invoking as it corresponded to the Passover.
More supposition on your part. How do you know this? Have you had extensive conversations with those who were in the upper room? We believe the Apostles believed as we believe about this. No symbolism, just the real deal!
Jesus Christ did not lie when he said those words, no, not right before the most momentous moment in all of human history. He meant what he said, and said exactly what he meant. No, not symbolism - that was something made up sometime around the 16th century.
Unfortunately, however, your church twisted this so it is a legalistic ceremony whereby if a member fails to partake, they become in danger of damnation because their present sins lie unforgiven and unpaid for.
Not so. There is no danger of damnation for the individual Catholic who fails to receive Holy Communion. It is recommended that the individual Catholic receive the Holy Eucharist at least once per year, but there is no damnation penalty if this is not done. The faithful are encouraged however to partake of Holy Communion frequently, as it is to the individuals personal benefit to do so.
Partaking in communion becomes a means of upkeep in order to remain in God's grace.
Again, such a thing is not required to "remain in God's grace". God pours his grace upon the Catholic in a general manner just as you believe, it is a free gift from God. Grace is also inherent in the particular sacrament we are discussing, it is given freely upon the reception of it.
Such a teaching rejects grace and emphasizes legalism and works in order to maintain salvation.
No, we do not reject the concept of God's grace being given freely in a general manner - it is the gift to all Christians. We believe however that in the reception of the sacraments, grace is inherent in all of them - freely given as a gift from God. You misunderstand how we see grace.
They can only say..."I am being saved" as I continue to keep the sacraments designated by the Roman Catholic Church.
The Christian life and the salvation it offers is a continuing lifelong journey - that is how we see it. You see it differently with your "I am saved" proclamation. The fact is that neither our nor your outlook on this is either better or more true than the other. We are both trying to live holy and pleasing lives for God.
Adonia, it is grievous legalism, the kind that Paul condemned in the Galatian church, that Rome preaches. Why you are blind to this legalism is baffling to me.
Legalism? Isn't the whole way of Christ based on that concept? You know, like following God's law as taught to us by Jesus Christ? Yes, by that measure we Catholics are guilty of the charge, as you should also be.