«3 The term «eternal life» seems to point rather more unambiguously to the fulfillment
of the good in life beyond
death, yet in the fourth gospel, for which this is the
central symbol, eternal life means a relationship to God in which man participates in this world.
Furthermore, since the
death and resurrection
of Jesus was
central to Christian belief and practice, and since teaching was often done with the help
of symbols, it probably became customary as a part
of nearly every meal where Christians were gathered, to remind people that the bread they were eating represented the body
of Jesus which was broken for them, and the wine they were drinking represented His blood.