I see Q did a lot of posting, but I will just say my piece.

For most of those it is saying, those who eat my flesh and drink my blood in a symbolic way will have eternal life. Basically, those who believe in me and what I am will have eternal life.

In communion the bread and wine symbolize the body and blood, I mean, we can't just tear apart someone for communion, there wouldnt be anyone left.

__________________