text: Trent,
  You will see I was commenting on the word 're-enactment'.  That's a different word than 're-presentation'.
  
  When I offer Mass with the people we are obviously 're-enacting' the words and actions of Jesus at the Passover, before his death. 
  Thank God! I don't want anyone to think they have to crucify me to 're-enact' what Jesus did on the next day.
  
  Of course, the sacrifice of the Cross did not exist until it happened. You make it sound like it was there from all eternity!
  
  This does raise an interesting question. You, or others, might like to comment:
  
  When Jesus asked the disciples at the Passover supper to 'take and eat' the matzoh, and to 'take and drink' the wine, was he 'present' in two different ways?? Was it a 'transubstantiation' of the passover bread and wine? After all, he had not died yet. 
  
  He was telling the disciples HOW to remember him and his death, for later on, after his resurrection. And gave us a means to share 'communion' with his sacrifice, for later use.