The cover art brings together three concepts that are at the core of this book: the Rosary, the union of husband and wife, and the Christ-like love that brings love and life to marriage.
The central design element on the cover (pictured above) represents the wedding rings of the husband and wife and symbolizes their sacramental union. But the overlap also creates a new shape. This shape, known as a mandorla, has a longstanding place in Christian sacred art.
Mandorla is the Italian word for almond, which the shape resembles. In Christian tradition, it has often been used to signify Christ. Christ is fully God and fully man, so if we imagine the overlapping of the divine and earthly realms (circles), we will find Christ in that space.
Thus, the heart in the center of the mandorla represents the love of Christ and, simultaneously, the love that springs forth from marriage when it is Christ-centered.