Hi, Luvtosew,
You are more than welcome for the link. I would suggest that the apparent time you have spent in reading nonsense is further plaguing your faith. I had honestly never heard of Radbertus … but, I think you have confused him with Ratramnus - here is a link:
en.wikipedia.org/wiki/Ratramnus. Basically, Ratramnus had some major problems with the Catholic Faith - his idea that the Eucharist was a symbol and his belief in double predestination would have surely ranked him as the first Calvinist! Seriously, if you read about heretical monks and their ideas, and you have, what appears to me, a very weak understanding of the Catholic Faith - you are simply endangering your soul. First, get a correct understanding of what the Catholic Church teaches - and work on that for a while before looking for heretical views.
Would you mind telling the source you are using for these truly un-Catholic ideas? I can tell you that none of this came from anything I gave you.
I will move on to your question about the effect of the Eucharist on a person who believes and one who does not believe. I believe you are familiar with 1Cor 11:27-29.
27 Therefore whosoever shall eat this bread, or drink the chalice of the Lord unworthily, shall be guilty of the body and of the blood of the Lord.
28 But let a man prove himself: and so let him eat of that bread, and drink of the chalice.
29 For he that eateth and drinketh unworthily, eateth and drinketh judgment to himself, not discerning the body of the Lord.
For the unbeliever or any Catholic in the state of mortal sin to willfully receive the Eucharist would be a terrible sin, and this person is responsible for this action. And as you read St. Paul’s words, you see that he is not mincing words - he condemns such evil actions. I really can not provide you with a better answer then what St. Paul has given.
Maybe this is just my imagination … but, your comments on these progressive posts seen to indicate that you have truly drifted from the True Faith. My wife and I will keep you in our prayers. Please use judgment before picking something to read about any aspect of the Catholic Church. What you chose is truly willful and each of us is responsible for nurturing the Faith in our hearts.
God bless