"Hans Urs von Balthasar is increasingly acknowledged as one of the greatest theologians of the Christian tradition. Unquestionably, he was master of Western civilization as few have ever been and brought all into the key of Christ. His spiritual mentor in this vast undertaking was Adrienne von Speyr, whose work von Balthasar held to be more important than his own. Karl Rahner famously observed that the Christian of the twenty-first century would be a mystic-or not be at all. Adrienne von Speyr models this for us: she was gifted with a 'cataract of mystical graces.' Matthew Lewis Sutton's deep penetration into her mystical gifts offers an excellent introduction to her unique vision and also helps hit the 'reveal codes' button for von Balthasar's theology."

Raymond Gawronski (Dominican School of Philosophy & Theology, Berkeley, CA)

"This book has the potential to do for Adrienne von Speyr's theology what Father Edward Oakes's Pattern of Redemption did for Hans Urs von Balthasar's in the mid-1990s, in this case by accessibly introducing Adrienne to a generation of students and scholars. Focusing on the center of her thought-the opening of heaven through Christ's obedience so that we can share even now in the relationships that characterize the life of the divine Trinity, in light of her own experience of mystical penetration into the Father's sending of the Son and Spirit-Matthew Lewis Sutton ably presents Adrienne's teaching on the full panoply of theological topics. The convergence of her theology with von Balthasar's is striking."

Matthew Levering (Mundelein Seminary)

"Matthew Lewis Sutton's thorough, unpretentious, and lucid introduction to the person and work of Adrienne von Speyr is now the standard guide in English. Indeed, I suspect it will remain the standard for many years to come. If you're looking for an excellent introduction to Adrienne von Speyr, look no further."

Rodney Howsare (DeSales University)

"Matthew Lewis Sutton's explication of Adrienne von Speyr's insight into Christian spirituality untangles the style of the mystical writer, giving the reader access into the deep vision of this contemporary woman, which is too often dismissed as simplistic due to her uncomplicated language by some and as impenetrable due to her circular manner of her writing by others. Sutton's work uncovers wealth within subtlety and gives access to a truly inspired writer for sincere seekers of God's presence in the world. It is a must-read for those who have approached von Speyr but found her difficult to follow."

Justin M. Matro (Saint Vincent Seminary)

Please preorder Heaven Opens: The Trinitarian Mysticism of Adrienne von Speyr.