We come to the second of the Sacraments selected for study, that of the Sacrifice of the Eucharist, a symbol of the eternal Sacrifice already explained, the daily sacrifice of the Church Catholic throughout the world imaging that eternal Sacrifice by which the worlds were made, and by which they are evermore sustained. It is to be daily offered, as its archetype is perpetually existent, and men in that act take part in the working of the Law of Sacrifice, identify themselves with it, recognise its binding nature, and voluntarily associate themselves with it in its working in the worlds; in such identification, to partake of the material part of the Sacrament is necessary, if the identification is to be complete, but many of the benefits may be shared, and the influence going forth to the worlds may be increased, by devout worshippers, who associate themselves mentally, but not physically, with the act. This great function of Christian worship loses its force and meaning when it is regarded as nothing more than a mere commemoration of a past sacrifice, as a pictorial allegory without a deep ensouling truth, as a breaking of bread and a pouring out of wine without a sharing in the eternal Sacrifice. So to see it is to make it a mere shell, a dead picture instead of a living reality. "The cup of blessing which we bless, is it not the communion [the communication of, the sharing in] of the blood of Christ?" asks the apostle. "The bread which we break, is it not the communion of the body of Christ?"[341] And he goes on to point out that all who eat of a sacrifice become partakers of a common nature, and are joined into a single body, which is united to, shares the nature of, that Being who is, present in the sacrifice. A fact of the invisible world is here concerned, and he speaks with the authority of knowledge. Invisible Beings pour of their essence into the materials used in any sacramental rite, and those who partake of those materials--which become assimilated in the body and enter into its ingredients--are thereby united to those whose essence is in it, and they all share a common nature. This is true when we take even ordinary food from the hand of another--part of his nature, his vital magnetism, mingles with our own; how much more true then when the food has been solemnly and purposely impregnated with higher magnetisms, which affect the subtle bodies as well as the physical. If we would understand the meaning and use of the Eucharist we must realise these facts of the invisible worlds, and we must see in it a link between the earthly and the heavenly, as well as an act of the universal worship, a co-operation, an association, with the Law of Sacrifice, else it loses the greater part of its significance.