From scholarly monographs to papal homilies, Joseph Ratzinger has insisted consistently over decades that Christianity is not a set of ideas to believe or, even less, moral laws to follow. Rather, Christianity is about a person and our encounter with that person.

In "The Word Made Love," Christopher Collins identifies in the structure of Ratzinger's thought the presentation of God as one who speaks and who ultimately speaks Himself in the person of Jesus Christ. Humanity's posture before God is one of hearing and responding. For Ratzinger, then, dialogue is the basic structure of al...