One of the main differences between Catholic (including the Orthodox Church) and other Christian denominations is that of faith in the Eucharist. Christ said to Thomas, "Happy are those who do not see me and yet believe." It's like this with the Eucharist, we do not see the physical Christ but we believe. We believe, because he commanded us to: "Eat my body and drink my blood....and I will raise you up on the last day (John 6). In this video clip taken from my talk given at the 2004 Eucharistic Convention in New Zealand I show that the Church Fathers clearly show the Eucharist is not to be taken merely as symbolic. It is very clear what it should be regarded as.