body and blood of Christ are "truly and substantially present in, with and under the forms" of the consecrated bread and wine (the elements), so that communicants orally eat and drink the holy body and blood of Christ Himself as well as the bread and wine (cf. Augsburg Confession, Article 10) in this Sacrament. The Lutheran doctrine of the real presence is more accurately and formally known as "the Sacramental Union." It has been inaccurately called "consubstantiation", a term which is specifically rejected by most Lutheran churches and theologians since it creates confusion about the actual doctrine, and it subjects the doctrine to the control of an abiblical philosophical concept in the same manner as, in their view, does the term "transubstantiation". For Lutherans, there is no Sacrament unless the elements are used according to Christ's institution (consecration, distribution, and reception). This was first articulated in the Wittenberg Concord of 1536 in the formula: Nihil habet rationem sacramenti extra usum a Christo institutum ("Nothing has the character of a sacrament apart from the use instituted by Christ"). Some Lutherans use this formula as their rationale for opposing in the church the reservation of the consecrated elements, private Masses, the practice of Corpus Christi, and the belief that the reliquæ (what remains of the consecrated elements after all have communed in the worship service) are still sacramentally united to the Body and Blood of Christ. This interpretation is not universal among Lutherans. The consecrated elements are treated with reverence; and, in some Lutheran churches, are reserved as in Orthodox, Catholic, and Anglican practice. The external Eucharistic adoration is usually not practiced by most Lutherans except for bowing, genuflecting, and kneeling to receive the Eucharist from the Words of Institution and elevation to reception of the holy meal. The reliquæ traditionally are consumed by the celebrant after the people have communed, except that a small amount may be reserved for delivery to those too ill or infirm to attend the service. In this case, the consecrated elements are to be delivered quickly, preserving the connection between the communion of the ill person and that of the congregation gathered in public Divine Service. Lutherans use the terms "in, with and under the forms of consecrated bread and wine" and "Sacramental Union" to distinguish their understanding of the Eucharist from those of the Reformed and other traditions. Anglican view Anglicans prefer a view of