γ) Unfortunately this exalted and mystic theory cannot be squared with the theological principles underlying the Catholic teaching on the Trinity, especially that portion of it which concerns the appropriations and missions of the three Divine Persons.(1151) It is true that sanctifying grace culminates in a communication of the Divine Nature, and that this θείωσις is effected by imprinting upon the soul an image of the divine processes of generation and spiration,—the first by adoptive filiation, the second by an indwelling of the Holy Ghost.(1152) In fact all the Trinitarian relations are reflected in the justification of the sinner. Thus regeneration corresponds to the generation of the Logos by the Father; adoptive sonship and the accompanying participation of the soul in the Divine Nature corresponds to our Lord’s natural sonship and his consubstantiality with the Father; the indwelling of the Holy Ghost and His union with the soul, on the other hand, corresponds to the divine process of Spiration, inasmuch as it is preëminently a supernatural union of love and effects a sort of mutual inexistence or perichoresis of the soul in the Holy Ghost or the three Divine Persons respectively.(1153) Since, however, this union of the soul with the substance of the three Divine Persons in general, and the Holy Ghost in particular, is not a substantial and physical but only an accidental and moral union, the regeneration of the sinner must be conceived as generation in a metaphorical sense only, divine sonship as adoptive sonship, the deification of man as a weak imitation of the divine _homoousia_, and the indwelling of the Holy Spirit in the soul as a shadowy analogue of the Divine Perichoresis.(1154) READINGS:—Deharbe, _Die vollkommene Liebe Gottes nach dem hl. Thomas von Aquin_, Ratisbon 1856.—Marchant, _Die theologischen Tugenden_, Ratisbon 1864.—Mazzella, _De Virtutibus Infusis_, 4th ed., Rome 1894.—G. Lahousse, S. J., _De Virtutibus Theologicis_, Louvain 1890.—S. Schiffini, S. J., _Tractatus de Virtutibus Infusis_, Freiburg 1904.—J. Kirschkamp, _Der Geist des Katholizismus in der Lehre vom Glauben und von der Liebe_, Paderborn 1894.—C. Weiss, _S. Thomae Aquinatis de Septem Donis Spiritus Sancti Doctrina Proposita et Explicata_, Vienna 1895. On the indwelling of the Holy Ghost in the souls of the just see A. Scholz, _De Inhabitatione Spiritus Sancti_, Würzburg 1856.—*Franzelin, _De Deo Trino_, pp. 625 sqq., Rome 1881.—Oberdörffer, _De Inhabitatione Spiritus Sancti in Animabus Iustorum_, Tournai 1890.—* B. Froget, O. P., _De l’Inhabitation du S. Esprit dans les Âmes Justes d’après la Doctrine de S. Thomas d’Aquin_, Paris 1901.—De Bellevue, _L’Oeuvre du S. Esprit ou la Sanctification des Âmes_, Paris 1901. On the historic development of the dogma see Schwane, _Dogmengeschichte_, 2nd ed., Vol. II, § 56-75, Freiburg 1895. Section 3. The Properties Of Sanctifying Grace