Of course, one can see why such a claim would be a stumbling block, insofar as its logic remains hidden, or veiled, until the Last Supper, when Jesus institutes the sacrament of the Eucharist (which Catholics refer to as the “source and summit” of the Christian life); and even then only in retrospect, after Christ himself has died, been buried, and resurrected, so that the nascent Church begins to congregate and, with the help of the Holy Spirit, to formulate a liturgy and a theology.