CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 806–809

806 In the unity of this Body, there is a diversity of members and functions. All members are linked to one another, especially to those who are suffering, to the poor and persecuted.
807 The Church is this Body of which Christ is the head: she lives from him, in him, and for him; he lives with her and in her.
808 The Church is the Bride of Christ: he loved her and handed himself over for her. He has purified her by his blood and made her the fruitful mother of all God's children.
809 The Church is the Temple of the Holy Spirit. The Spirit is the soul, as it were, of the Mystical Body, the source of its life, of its unity in diversity, and of the riches of its gifts and charisms.