In my new book, Behold Your Mother: A Biblical and Historical Defense of the Marian Doctrines, , I spend most of its pages in classic apologetic defense of Mary as Mother of God, defending her immaculate conception, perpetual virginity, assumption into heaven, her Queenship, and her role in GodÂ’s plan of salvation as Co-redemptrix and Mediatrix. But perhaps my most important contributions in the book may well be how I demonstrate each of these doctrines to be crucial for our spiritual lives and even our salvation.And I should note that this applies to all of the Marian doctrines. Not...