[FormerLib]

The Orthodox certainly reject any attempt to link "physical" with "substance". We prefer the term "mystical" as it implies that which is beyond human understanding.

[Hermann the Cherusker]

I don't like linking physical with substance either. It smacks of cartesianism and notions of accidental illusions, as earlier noted.

After the consecration there is something that really looks like bread up there on the altar. Its no illusion. Otherwise we wouldn't call it "the Holy Bread of eternal life" in our Roman Canon. Nor would St. Paul say "when we eat this bread" etc. in 1 Corinthians 11.