The Eastern Churches have put more emphasis on this but it’s also a part of Roman Catholic tradition. These is from the Catechism:
**375 The Church, interpreting the symbolism of biblical language in an authentic way, in the light of the New Testament and Tradition, teaches that our first parents, Adam and Eve, were constituted in an original “state of holiness and justice”.250 This grace of original holiness was “to share in. . .divine life”.251
705 Disfigured by sin and death, man remains “in the image of God,” in the image of the Son, but is deprived "of the glory of God,"66 of his “likeness.” The promise made to Abraham inaugurates the economy of salvation, at the culmination of which the Son himself will assume that "image"67 and restore it in the Father’s “likeness” by giving it again its Glory, the Spirit who is “the giver of life.”
398 In that sin man preferred** himself to God and by that very act scorned him. He chose himself over and against God, against the requirements of his creaturely status and therefore against his own good. Constituted in a state of holiness, man was destined to be fully “divinized” by God in glory. Seduced by the devil, he wanted to “be like God”, but “without God, before God, and not in accordance with God”.279
460 The Word became flesh to make us “partakers of the divine nature”: [78] “For this is why the Word became man, and the Son of God became the Son of man: so that man, by entering into communion with the Word and thus receiving divine sonship, might become a son of God.” [79] “For the Son of God became man so that we might become God.” [80] “The only-begotten Son of God, wanting to make us sharers in his divinity, assumed our nature, so that he, made man, might make men gods.” [81 **
What is divinity though?