While my friend Radical, who initially made the challenge that I took, still has not answered.
It seems that he is objecting to my posting a link, and not the entire paragraph.
So, I will comply, citing his own post citing St. Augustine:
One thing is seen, another is to be understood. What you can see on the altar, you also saw last night; but what it was, what it meant, of what great reality it contained the sacrament, you had not yet heard. So what you can see, then, is bread and a cup; that’s what even your eyes tell you; but as for what your faith asks to be instructed about, the bread is the body of Christ, the cup the blood of Christ. It took no time to say that indeed, and that, perhaps, may be enough for faith; but faith desires instruction. The prophet says, you see, Unless you believe, you shall not understand (Is 7:9). I mean, you can now say to me, “You’ve bidden us believe; now explain, so that we may understand.” Some such thought as this, after all, may cross somebody’s mind: “We know where our Lord Jesus Christ took flesh from; from the Virgin Mary. He was suckled as a baby, was reared, grew up, came to man’s estate, suffered persecution from the Jews, was hung on the tree, was slain on the tree, was taken down from the tree, was buried; rose again on the third day, on the day he wished ascended into heaven. That’s where he lifted his body up to; that’s where he’s going to come from to judge the living and the dead; that’s where he is now, seated on the Father’s right. How can bread be his body? And the cup, or what the cup contains, how can it be his blood?” The reason these things, brothers and sisters, are called sacraments is that in them one thing is seen, another is to be understood. What can be seen has a bodily appearance, what is to be understood provides spiritual fruit. So if you want to understand the body of Christ, listen to the apostle telling the faithful, You, though, are the body of Christ and its members (1 Cor 12:27). So if it’s you that are the body of Christ and its members, it’s the mystery meaning you that has been placed on the Lord’s table; what you receive is the mystery that means you. It is to what you are that you reply Amen, and by so replying you express your assent. What you hear, you see, is The body of Christ, and you answer, Amen. So be a member of the body of Christ, in order to make that Amen true.
I hope this will be enough to induce him to come and respond to his challenge. :shrug: