The body and blood of Christ.
We get used to hearing that. It isn't shocking to our sensibilities anymore.
But I remember when Harry was small - maybe three - and he picked up on part of the Eucharistic prayer where the priest says "take this, all of you, and drink from it: this is the cup of my blood." Harry looked at me in horror and loudly (please note the loudly) said "He wants us to drink his blood?!"
Yes. Yes he does. And maybe the whole fact should shock and astonish us just a little more than it usually does.