It is also by this one “power of the Holy Ghost coming upon men” that we learn how the Head and the Body make one Christ. As in the human frame the presence of the soul gives it life and unity, binding together every member by that secret indivisible force, from the least to the greatest, from the heart and brain to the minutest portion of the outward skin, so in this divine Body, which makes the whole Christ, it is the presence of the Holy Ghost, as of the soul, which gives it unity and life. The conclusion was drawn by a great Saint, and no less great a genius, fourteen hundred years ago, and I prefer S. Augustine's words to any which I can use myself: “Our spirit by which the whole race of man lives is called the soul; our spirit, too, by which each man in particular lives is called the soul; and you see what the soul does in the body. It quickens all the limbs: through the eyes it sees, through the ears it hears, through the nostrils smells, through the tongue speaks, through the hands works, through the feet walks; it is present at once in all the limbs that they may live; life it gives to all, their functions to each. The eye does not hear, nor the ear nor the tongue see, nor the ear nor the eye speak, but both live; the functions are diverse, the life common. So is the Church of God. In some saints it works miracles; in others gives voice to the truth; in others, again, maintains the virginal life; in others keeps conjugal fidelity; in these one thing, in those another; each have their proper work, but all alike live. Now, what the soul is to the human body, that is the Holy Spirit to the body of Christ, which is the Church: what the soul does in all the limbs of an individual body, that does the Holy Spirit in the whole Church. But see what you have to avoid, what to observe, and what to fear. It happens that, in the human body, or in any other body, some member may be cut off, hand, finger, or foot. Does the soul follow it when cut off? As long as it was in the body it lived: when cut off, it loses life. So too the Christian man is a Catholic while he lives in the body; when cut off, he becomes a heretic; the Spirit does not follow the amputated limb.”78
But what is this “power of the Holy Ghost coming upon men”? It is the whole treasure of truth and grace, which dwelt first in the natural body of Christ, which He came to bestow on men, which He withdrew not when He ascended, but of which He promised the continuance in the Person of the Holy Ghost, and fulfils by that Person indwelling in the Church. It was the imparting the whole treasure of truth and grace by such an indwelling which made it expedient for Him to go, which made His bodily departure not a loss, but a gain, which was “the promise” of which He spoke on that last night, and which was expressly declared to be a perpetual presence, leading, as it were, by the hand79 into all truth – an all-powerful, all-completing, all-compensating presence, such as that alone is or can be which maintains the intellect of man in truth, because it maintains his will in grace: and, instead of the two wild horses of which the great heathen80 spoke, guides the soul in her course as borne aloft on those twin divine yoke-fellows,81 faith and charity.
Correlative, therefore, to the Person of Him who is at once King, and God, and Head, and Bridegroom, and Father, is that singular creation of His Spirit, by which, in the Kingdom, Temple, Body, Spouse, and Mother, He deposited the treasure of the truth and grace which He became man to communicate. It was not as individual men, living a life apart, but as common children of one race, joint members of one body, that the guilt of the first father fell upon them; it is only on them as children of a higher race and members of a far greater body, that the grace of the Deliverer is bestowed. The distinctions of race and the divisions of condition drop away as they are baptised into one body, and made to drink of one spirit. The new and supernatural life cannot be communicated save by this act of engrafting into a new body. As Eve from the side of Adam sleeping, so the Church from the side of Christ suffering; as Eve bears still to Adam the children of men, so the Church to Christ the children of Christ. These are not two mysteries, but one, unfathomable in both its parts, of justice and of mercy; but the whole history of the human race bears witness to the first, and the whole history of the Christian people to the second. It would be amply sufficient to prove what we have been saying, that the first communication of the supernatural life is conferred by being baptised into one body and made to drink into one spirit. But this is not all. There is a yet dearer and more precious gift, which maintains and increases the life so given. Our Lord stands in the midst of His Church visibly forming from day to day and from age to age that Body of His which reaches through the ages; He takes from Himself and gives to us. He incorporates Himself in His children. He grows up in us, and by visible streams from His heart maintains the life first given. Here, above all, is the one Christ, the Head and the Body. This is but an elemental truth of Christian faith, though it is the highest joy of the Christian heart. It was in an instruction to catechumens that S. Augustine said, “Would you understand the Body of Christ? Hear the Apostle saying to the faithful, ‘But you are the Body and the members of Christ.’ If, then, you are Christ's Body and His members, it is your own mystery which is placed on the Lord's table; it is your own mystery which you receive. It is to what you are that you reply amen, and by replying subscribe. For you are told, ‘the Body of Christ,’ and you reply, amen. Be a member of the Body of Christ, and let your amen be true. Why, then, in bread? Let us bring here nothing