In many religions, wine plays an important and also liturgical role in worship. Since time immemorial, it has been used as an offering pleasing to God and as a medium to enter into mystical contact with God or the gods. Many peoples had their own wine gods, for example Bacchus with the Romans and Dionysus with the Greeks. Also in the Bible there are numerous quotations on the subject of wine, some of them extensive. A central point of faith of the Roman Catholic Church is the transformation of bread and wine into Christ's flesh and blood in the Eucharist. The preparation of wine for the Mass was therefore from the very beginning indispensable for the practice of the Mass and a decisive motivation. Many monasteries have therefore devoted themselves professionally to viticulture and wine making. Many of the vineyards that still exist today have their origins in monastery foundations of the early Middle Ages.