"Deep" means the root vision of traditional Anglicanism. It means digging down to see how the greatest Anglican minds and hearts saw the Trinitarian God, and the ways they saw this God come to his people through the Church of Jesus Christ. It means starting in the first centuries of Christianity in the British Isles and not simply the sixteenth century. It means exploring the wealth of Anglican spirituality in the 14th and 17th centuries. It means appreciating the liturgical genius of Thomas Cranmer but also the extension and revision of that liturgy by the bishops of the 1662 Book of Common Prayer, which for most of the last 350 years has been the only official version in the Anglican Communion. It means figuring out not only what distinguishes Canterbury from Rome and Geneva but also from Wittenberg. More recently, it means discerning why the orthodox center of Anglicanism has moved to the Global South and away from Canterbury. In short, it means plumbing the depths of orthodoxy, liturgy, and sacraments, while traveling on the pilgrim road and living a life of adoration in pursuit of the Beatific Vision.