Final answer:
The Body and Blood of Jesus Christ are received during the celebration of the Sacrament of the Eucharist, where bread and wine are consumed in remembrance of Christ's sacrifice. This practice was initiated by Christ during the Last Supper and is a central aspect of Christian worship.
Step-by-step explanation:
We receive the Body and Blood of Jesus Christ when we celebrate the Sacrament of Eucharist. The Eucharist, also known as Holy Communion or The Lord's Supper, is a central sacrament of the Christian church, instituted by Jesus Christ during the Last Supper.
During the celebration of the Eucharist, Christians eat bread and drink wine as a way to remember Christ's sacrifice and His teachings. The ceremony is a re-enactment of the Last Supper, where Jesus shared bread and wine with His apostles, telling them, "Take, eat; this is my body" and "Drink from it, all of you; for this is my blood of the covenant, which is poured out for the forgiveness of sins".