Its Whole Estate
The states of conjugial love are Innocence, Peace, Tranquillity, Inmost Friendship, full Confidence, and mutual desire of mind and heart to do each other every good. From all of these come blessedness, satisfaction, agreeableness and pleasure; and as the eternal fruition of them, heavenly happiness. These states can be realized only in the marriage of one man with one wife.
—Conjugial Love, nn. 180, 181