The Eucharist, being the memorial sacrifice of Christ, is the central service. The Irvingian Churches teach the real presence of Christ in the Eucharist, though they rejected what they saw as the philosophical explanations of the Roman Catholic doctrine of transubstantiation as well as Lollardist doctrine of consubstantiation. Communion was taken in both kinds. Children were also admitted to communion from time to time, and more frequently until admitted to full communion, which generally occurred between the ages of 18 and 20. Communion would be distributed each day after morning prayer, though no consecration would be performed.