Catholic sacramental conception, the middle term we are seeking, by which the essence of catholicity can be brought into visible manifestation. Rather, this process has to be already completed and the conception of the Church to be actualized, before the sacrament can manifest its efficacy. Through this last, the element of the supernatural, i.e., the invisible germ of the Church, must be originally planted or gradually strengthened in individual souls. But this is effected by the sacrament as the organ and in the name of the Church, though in particular cases outside of her communion. The continuous existence of Catholicity is essentially the self-building of the body of Christ. It produces its own increase through the instrumentality of the sacraments. [Footnote 12] The union between the supernatural and the historical actuality, or the bond of {99} catholicity, is not then first established in the sacraments. These only mediate for individual souls the reception into the union, or confirm them in their organic relation to it, and are signs of fellowship. In addition to what has been already said, there is another reason, and one of wider application, to be considered, as bearing on this point. The principle of a new life which has to be infused into individual souls through the sacraments is sanctifying grace. In this, therefore, by logical consequence, we should be obliged to recognize the interior constitutive principle of the Church, if it were true that the connection between the inner being of the Church and her historical manifestation were brought to pass through the efficacy of the sacraments. According to this apprehension of the subject, only the saints would belong to the true Church. [Footnote 12: Eph. iv. 16.] One might seek to evade this last conclusion by averring that in the instance of baptism, the sacrament produces in the soul of the recipient, beside sanctifying grace, still another effect, independently of the disposition, namely, the baptismal character. This character is an indelible mark impressed on the soul. Here, then, is given us a supernatural principle which penetrates the deepest interior of the human spirit, and which is, at the same time, capable of verifying itself as a historical fact; inasmuch as it is infallibly infused into the soul through an outward, sensible action, and thereby, through the medium of the latter, becomes visible. Beside this, one might be still more inclined to regard the baptismal character as the Church's formative principle, because the same is stamped upon the soul through a sacrament, whose special end is to incorporate with the body of Christ its individual members; for which reason, also, baptism is designated in the language of the Church as the gate of the spiritual life, _vitae spiritualis janua_. [Footnote 13] [Footnote 13: _Decret. pro Armenia_.]