The Eucharist, also known as Holy Communion and the Lord's Supper, is a Christian rite that is considered a sacrament in most churches, and as an ordinance in others. Christians believe that the rite was instituted by Jesus at the Last Supper, the night before his crucifixion, giving his disciples bread and wine. Passages in the New Testament state that he commanded them to "do this in memory of me" while referring to the bread as "my body" and the cup of wine as "the blood of my covenant, which is poured out for many". According to the Synoptic Gospels this was at a Passover meal.
Eucharistic adoration is a Eucharistic devotional practice primarily in Western Catholicism, but also to a lesser extent in certain Lutheran and Anglican traditions, in which the Blessed Sacrament is adored by the faithful. This practice may occur either when the Eucharist is exposed, or when it is not publicly viewable because it is reserved in a place such as a church tabernacle.
First Communion is a ceremony in some Christian traditions during which a person of the church first receives the Eucharist. It is most common in many parts of the Latin Church tradition of the Catholic Church, Lutheran Church and Anglican Communion. In churches that celebrate a rite of First Communion separate from baptism or confirmation, it typically occurs between the ages of seven and thirteen, often acting as a rite of passage. In other denominations first communion ordinarily follows the reception of confirmation, which occurs at some point in adolescence or adulthood, while Eastern Orthodox and Oriental Orthodox Christians first receive the sacrament of Holy Communion in infancy, along with Holy Baptism and Chrismation.
A tabernacle or sacrament house is a fixed, locked box in which the Eucharist is stored as part of the "reserved sacrament" rite. A container for the same purpose, which is set directly into a wall, is called an aumbry.
Infant communion refers to the practice of giving the Eucharist, often in the form of consecrated wine mingled with consecrated bread, to young children. This practice is standard throughout Eastern Christianity, where communion is given at the Divine Liturgy to all baptized and chrismated church members regardless of age. Infant communion is less common in most of Western Christianity.
Eucharistic discipline is the term applied to the regulations and practices associated with an individual preparing for the reception of the Eucharist. Different Christian traditions require varying degrees of preparation, which may include a period of fasting, prayer, repentance, and confession.
The Roman Rite is the most common ritual family for performing the ecclesiastical services of the Latin Church, the largest of the sui iuris particular churches that comprise the Catholic Church. The Roman Rite governs rites such as the Roman Mass and the Liturgy of the Hours as well as the manner in which sacraments and blessings are performed.
Quam singulari was a decree released by Pope Pius X in 1910, concerning the admittance of children to the Eucharist. This followed a decree by the Sacred Congregation of the Council, five years before on frequent Communion.
During the Mass of the Faithful, the second part of the Mass, the elements of bread and wine are considered to have been changed into the veritable Body and Blood of Jesus Christ. The manner in which this occurs is referred to by the term transubstantiation, a theory of St. Thomas Aquinas, in the Roman Catholic Church. Members of the Orthodox, Anglican, and Lutheran communions also believe that Jesus Christ is really and truly present in the bread and wine, but they believe that the way in which this occurs must forever remain a sacred mystery. In many Christian churches some portion of the consecrated elements is set aside and reserved after the reception of Communion and referred to as the reserved sacrament. The reserved sacrament is usually stored in a tabernacle, a locked cabinet made of precious materials and usually located on, above, or near the high altar. In Western Christianity usually only the Host, from Latin: hostia, meaning "victim", is reserved, except where wine might be kept for the sick who cannot consume a host.
Eucharist is the name that Catholics give to the sacrament by which, according to their belief, the body and blood of Christ are present in the bread and wine that are consecrated during the Catholic eucharistic liturgy, generally known as the Mass. The definition of the Eucharist in the 1983 Code of Canon Law as the sacrament where Christ himself "is contained, offered, and received" points to the three aspects of the Eucharist according to Catholic theology: the real presence of Christ in the Eucharist, Holy Communion, and the holy sacrifice of the Mass.
Ecclesia de Eucharistia is an encyclical by Pope John Paul II published on April 17, 2003. Its title, as is customary, is taken from the opening words of the Latin version of the text, which is rendered in the English translation as "The Church draws her life from the Eucharist". He discusses the centrality of the Eucharist to the definition and mission of the Church and says he hopes his message will "effectively help to banish the dark clouds of unacceptable doctrine and practice, so that the Eucharist will continue to shine forth in all its radiant mystery." He explored themes familiar from his earlier writings, including the profound connection between the Eucharist and the priesthood. It drew as well on his personal experiences saying Mass.
The Mass is the central liturgical service of the Eucharist in the Catholic Church, in which bread and wine are consecrated and become the body and blood of Christ. As defined by the Church at the Council of Trent, in the Mass "the same Christ who offered himself once in a bloody manner on the altar of the cross, is present and offered in an unbloody manner". The Church describes the Mass as the "source and summit of the Christian life", and teaches that the Mass is a sacrifice, in which the sacramental bread and wine, through consecration by an ordained priest, become the sacrificial body, blood, soul, and divinity of Christ as the sacrifice on Calvary made truly present once again on the altar. The Catholic Church permits only baptised members in the state of grace to receive Christ in the Eucharist.
Communion under both kinds in Christianity is the reception under both "species" of the Eucharist. Denominations of Christianity that hold to a doctrine of Communion under both kinds may believe that a Eucharist which does not include both bread and wine as elements of the religious ceremony is not valid, while others may consider the presence of both bread and wine as preferable, but not necessary, for the ceremony. In some traditions, grape juice may take the place of wine with alcohol content as the second element.
Mediator Dei is a papal encyclical issued by Pope Pius XII on 20 November 1947. It was the first encyclical devoted entirely to liturgy.
The liturgical reforms of Pope Pius XII took place mostly between 1947 and 1958.
Canon 915, one of the canons in the 1983 Code of Canon Law of the Latin Church of the Catholic Church, forbids the administration of Holy Communion to those upon whom the penalty of excommunication or interdict has been imposed or declared, or who obstinately persist in manifest grave sin:
Those who have been excommunicated or interdicted after the imposition or declaration of the penalty and others obstinately persevering in manifest grave sin are not to be admitted to holy communion.
Mirae caritatis is an encyclical of Pope Leo XIII on the Holy Eucharist given on 28 May 1902. Its theme is mainly the marvelous effects of devotion to the Holy Eucharist in the moral and spiritual life of the faithful.
Spiritual communion is a Christian practice of desiring union with Jesus Christ in the Eucharist. It is used as a preparation for Mass and by individuals who cannot receive holy communion.
There are seven sacraments of the Catholic Church, which according to Catholic theology were instituted by Jesus Christ and entrusted to the Church. Sacraments are visible rites seen as signs and efficacious channels of the grace of God to all those who receive them with the proper disposition.
The Order of Christian Initiation of Adults (OCIA), or Ordo Initiationis Christianae Adultorum, is a process developed by the Catholic Church for its catechumenate for prospective converts to the Catholic faith above the age of infant baptism. Candidates are gradually introduced to aspects of Catholic beliefs and practices. The basic process applies to adults and children who have reached catechetical age. Previously, the Order of Christian Initiation of Adults was known as the Rite of Christian Initiation of Adults (RCIA). The name was changed in 2021 to reflect greater fidelity to the original Latin.
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