"Materia Primo Prima" says the great Franciscan, "is the indeterminate element of contingent things. This does not exist in Nature, but it has reality in so far as it constitutes the term of God's creative activity. By its union with a substantial form it becomes endowed with the attributes of quantity, and becomes Secundo Prima. Subject to the substantial changes of Nature, it becomes matter as we see it."

It is this "Materia Primo Prima," the term of God's creative activity, that is eternally subjected to the regenerative process of spiritual interpenetration, and the result is organic life.

What is spirit? The creative power of the Logos, in the sense in which St. John interprets and corrects the early, partial, and therefore erroneous theories of the Stoics and of Philo. God the Son, the Eternal Word of the Father, "the brightness of His glory and the figure of His Substance." "God of God, Light of Light, very God of very God, begotten, not made, being of one substance with the Father: by Whom all things were made." Pure wisdom, pure will, pure energy, unconditioned by matter, but creating life out of the operation of the Holy Spirit on and through matter, and in the fullness of time becoming Incarnate for the purpose of the final redemption of man.

Now since man is so compact of matter and spirit, it must follow that he cannot lay hold of pure spirit, the Absolute that lies beyond and above all material conditioning, except through the medium of matter, through its figures, its symbols, its "phantasms." Says St. Thomas: "From material things we can rise to some kind of knowledge of immaterial things, but not to the perfect knowledge thereof." The way of life therefore, is the incessant endeavour of man sacramentally to approach the Absolute through the leading of the Holy Spirit, so running parallel to the slow perfecting of matter which is being effected by the same operation. So matter itself takes on a certain sanctity, not only as something susceptible, and in process, of perfection, but as the vehicle of spirit and its tabernacle, since in matter spirit is actually incarnate.

From this process follows of necessity the whole sacramental system, in theology, philosophy and operation, of Christianity. It is of its esse; its great original, revolutionary and final contribution to the wisdom that man may have for his own, and it follows inevitably from the basic facts of the Incarnation and Redemption, which are also its perfect showing forth.

Philosophically this is the great contribution of Christianity and for fifteen centuries it was held implicitly by Christendom, yet it was rejected, either wholly or in part, by the Protestant organizations that came out of the Reformation, and it fell into such oblivion that outside the Catholic Church it was not so much ignored or rejected as totally forgotten. Recently a series of lectures were delivered at King's College, London, by various carefully chosen authorities, all specialists in their own fields, under the general title "Mediaeval Contributions to Modern Civilization," and neither the pious author of the address on "The Religious Contribution of the Middle Ages," nor the learned author of that on "Mediaeval Philosophy," gave evidence of ever having heard of sacramental philosophy. It may be that I do them an injustice, and that they would offer as excuse the incontestible fact that Mediaevalism contributed nothing to "modern civilization," either in religion or philosophy, that it was willing to accept.

The peril of all philosophies, outside that of Christianity as it was developed under the Catholic dispensation, is dualism, and many have fallen into this grave error. Now dualism is not only the reversal of truth, it is also the destroyer of righteousness.

Sacramentalism is the anthithesis of dualism. The sanctity of matter as the potential of spirit and its dwelling-place on earth; the humanizing of spirit through its condescension to man through the making of his body and all created things its earthly tabernacle, give, when carried out into logical development, a meaning to life, a glory to the world, an elucidation of otherwise unsolvable mysteries, and an impulse toward noble living no other system can afford. It is a real philosophy of life, a standard of values, a criterion of all possible postulates, and as its loss meant the world's peril, so its recovery may mean its salvation.

Now as the philosophy of Christianity is purely and essentially sacramental, so must be the operation of God through the Church. This "Body of Christ" on earth is indeed a fellowship, a veritable communion of the faithful, whether living or dead, but it is also a divine organism which lives, and in which each member lives, not by the preaching of the Word, not even by and through the fellowship in living and worship, but through the ordained channels of grace known as the Sacraments. In accordance with the sacramental system, every material thing is proclaimed as possessing in varying degree sacramental potentiality, while seven great Sacraments were instituted to be, each after its own fashion, a special channel for the inflowing of the power of the Divine Actuality. Each is a symbol, just as so many other created things are, or may become, symbols, but they are also realities, veritable media for the veritable communications of veritable divine grace. Here is the best definition I know, that of Hugh of St. Victor. "A sacrament is the corporeal or material element set out sensibly, representing from its similitude, signifying from its institution, and containing from its sanctification, some invisible and spiritual grace." This is the unvarying and invariable doctrine of historic Christianity, and the reason for the existence of the Church as a living and functioning organism. The whole sacramental system is in a sense an extension, in time, of the Redemption, just as one particular Sacrament, the Holy Eucharist, is also in a sense an extension of the Incarnation, as it is also an extension, in time, of the Atonement, the Sacrifice of Calvary.

The Incarnation and the Redemption are not accomplished facts, completed nineteen centuries ago; they are processes that still continue, and their term is fixed only by the total regeneration and perfecting of matter, while the Seven Sacraments are the chiefest amongst an infinity of sacramental processes which are the agencies of this eternal transfiguration.