The Last Supper
Jesus commanded that his followers should remember Him by eating bread (His body) and drinking wine (His blood) until He returned. The Lord’s Supper is symbolized by a chalice of wine with the bread rising above it. The bread is referred to as the host and is a thin, round wafer made from bread and used for Holy Communion. The host usually has the letters INRI on it.
The Eucharist is the sacrament of the Lord's Supper; the solemn act of ceremony of commemorating the death of Christ, in the use of bread and wine, as the appointed emblems; the communion. The word Eucharist is derived from the Greek word eucharistian meaning to give thanks literally the "Thanksgiving to God". Eucharist is the principal act of worship on Sundays and other Feasts (also called Mass, Last Supper, Liturgy, The Holy Communion).
Christian Symbolism - INRI
The definition and the meaning of Symbols or Icon in early religious art forms. A Catholic sign or icon, such as the INRI Christian Symbol, is an object, character, figure, or color used to represent abstract ideas or concepts - a picture that represents an idea. A religious icon, such as the INRI Christian Symbol, is an image or symbolic representation with sacred significance. The meanings, origins and ancient traditions surrounding Christian symbols date back to early times when the majority of ordinary people were not able to read or write and printing was unknown. Many were 'borrowed' or drawn from early pre-Christian traditions.