Eucharist that their substances actually become the body and blood of Christ (transubstantiation). Lutherans believe the true body and blood of Christ are really present "in, with, and under" the forms of the bread and wine (sacramental union). Reformed Christians believe in a real spiritual presence of Christ in the Eucharist. Others, such as the Plymouth Brethren, take the act to be only a symbolic reenactment of the Last Supper and a memorial. In spite of differences among Christians about various aspects of the Eucharist, there is, according to the "Encyclopædia Britannica", "more of a consensus among Christians about the meaning
Eucharist inward spiritual experience of their adherents over any outward ritual, Quakers (members of the Religious Society of Friends) generally do not baptize or observe Communion. Christian denominations differ in their understanding of whether they may receive the Eucharist with those with whom they are not in full communion. The famed apologist St. Justin Martyr (c. 150) wrote: "No one else is permitted to partake of it, except one who believes our teaching to be true..." For the first several hundred years, non-members were forbidden even to be present at the sacramental ritual; visitors and catechumens (those still undergoing instruction) were