After his resurrection, Jesus’ body is glorified. This is the body that is truly physical. He tells Thomas to touch him. He asks for food when he appears to the disciples and eats with them on the road to Emaus. However, this is also the same body that walks through walls. It disappears right before their eyes while they’re eating on the way to Emaus. It ascends on its own power.
When we say that Christ is substantially present in the consecrated host and wine, we mean that the bread and wine have ceased to be what they appear to be. Together, the bread and wine are substantially Jesus Christ in his glorified body and blood.
Pope Benedict said that we’re not talking about biology when we say that we eat his body and drink his blood. We’re talking about substance. We’re no longer talking about cells, nerves, muscles, bones, tissue, chemicals, proteins, bases and acids and all the other minerals that make up the human body. We’re talking about a glorified body, one about which we know very little other than the fact that it’s a real body and at the same time it does not have any of the limitations that our bodies have, nor any of the needs that our body has. Jesus’ body does not need physical space. Therefore, he exists outside of space and time, yet remains physical. How is this possible? His body has been transformed through the resurrection. This glorified body is present, in essence, not just symbolically, in the Eucharist. To use a very simple explanation. Jesus body is no longer the same as it was when he was a baby in Bethlehem and he needed his nappy changed every two hours. His glorified body no longer has any of these needs. The Jesus that we receive in the Eucharist is the Glorified Christ.
I don’t know if I helped or made a bigger mess of things. Like I said, I was not there to hear what Father said. I’m trying to pull together form the little information that you have presented.
Br. JR, OSF