We were discussing Toltec dream wisdom and central american culture, and I drew a parallel to the Judeo-Christian culture of "sacrifice" which we are heirs to here in the West.
ex-l wrote:a bunch of people eating dry bread or biscuits
That may be all it became later & all it means to you, nevertheless ...
Jesus Christ was a mystic, learned master and leader - He was very aware of the Jewish Covenant, and the ritual animal sacrifice (when he turned over the market tables at the temple, many sold animals for sacrifice) - he knew exactly what he was saying and doing.
When he says, "I am the Lamb of God", "THIS (wine) is my blood ... THIS (bread) is my flesh", "THIS is the new covenant". We have a dual layered symbol - he replaces the lamb, the bread and wine replace him. He was consciously usurping the rites and rituals of the establishment - and threatening their earning capacity to boot, which he saw as a corruption of the covenant. One more reason they resented him (besides having no qualifications, not a pharisee and gaining followers).
All of this is much discussed and written about over centuries - it is not a new idea at all. Talk to your local priest, I am sure he will explain it in a similar way if he has done any study of this.