Answer:
Step-by-step explanation:
Transubstantiation is the belief, in Catholicism and some other Christian denominations, that during the celebration of the Eucharist (also known as Communion or the Lord's Supper), the bread and wine used in the ceremony are transformed into the actual body and blood of Jesus Christ, while still retaining their outward appearance of bread and wine.
The Catholic Church teaches that transubstantiation is a mystery of faith, and that the bread and wine become the body and blood of Christ through the power of the Holy Spirit, acting through the words and actions of the priest during the Mass. The Church holds that this transformation is not a physical change, but a change in substance, and that the bread and wine are no longer bread and wine, but the actual body and blood of Christ.
The Church's teachings on transubstantiation are rooted in the Bible and in early Christian tradition, and have been affirmed by various Church councils throughout history. The doctrine of transubstantiation is considered a central tenet of Catholic faith, and the Church holds that the Eucharist is the "source and summit" of the Christian life.
In terms of what the Church does regarding transubstantiation, it is a central part of the Catholic Mass, with the priest consecrating the bread and wine during the Eucharistic Prayer, and the faithful receiving Communion. The Church also has specific teachings and guidelines on the proper celebration and reception of the Eucharist, and Catholics are expected to observe these teachings as a sign of their faith and devotion.