Porcupine:
I can see your point, but I agree with others that the early Councils were attempting to combat particular heresies, and that the basic dogmas outlined in the Creed are absolutely essential as a foundation of faith before one can even begin to discuss the Eucharist. The Eucharist was an ever present component of the life of the Church - a casual reading of the early Fathers (not to mention the New Testament) will demonstrate that it was always the central expression of Christian worship and believed to be much more than mere bread and wine…it was the life of the Church, something lived and breathed, more than something defined or promulgated theologically (until, as other posters have pointed out, it became a major issue of dispute during the Protestant Reformation). It was also see as something private, between the baptized faithful and the Lord…in the very early Church, the catechumens were dismissed before the celebration of the Eucharist, because only those who had “put on Christ” in baptism could partake of this most intimate mystery of the Christian life. Once a convert had accepted the theological foundation of the Creed, including belief in the “one holy Church”, the Church would introduce the convert to the fulness of the Christian life.