Final answer:
The Christian Sacrament of Communion celebrates and remembers Christ's sacrifice for the sins of humankind. It is based on the Last Supper and serves as a symbolic reminder and re-enactment of Christ's sacrifice.
Step-by-step explanation:
The Christian Sacrament of Communion, also known as the Eucharist or Holy Communion, celebrates and remembers Christ's sacrifice for the sins of humankind. It is based on the Last Supper, where Jesus initiated this practice by blessing the bread and wine, saying they represent his body and blood. The sacrament of Communion does not free you from anything, but it serves as a symbolic reminder and re-enactment of Christ's sacrifice.