Adrienne von Speyr's theological writings—which were generally transcribed, copy edited, and published by Hans Urs von Balthasar—treat a wide range of topics in Catholic spirituality. As L. M. Miles notes in the journal "First Things", most of her books are scriptural commentaries and "there is a biblical rather than a dogmatic or systematic organization to her work." These include "John" (in four volumes), "Mark", "Letter to the Colossians", "Letter to the Ephesians", "Three Women and the Lord", "Bergpredigt" ["The Sermon on the Mount"], "Gleichnisse des Herrn" ["Parables of the Lord"], "Die Schöpfung" ["Creation"], "Achtzehn Psalmen" ["Eighteen Psalms"], "Isaia" ["Isaiah"], and "Elijah," among others. She also wrote meditations on Mary ("Handmaid of the Lord" and "Mary in the Redemption"), on the Mass (The Holy Mass), on the sacrament of confession ("Confession"), on the prophets ("The Mission of the Prophets"), on death ("The Mystery of Death"), on Christ's Passion ("The Passion from Within" and "The Cross: Word and Sacrament"). Some prominent features in her thought include the centrality of Christian obedience and of the Marian fiat, an understanding of God as ever-greater, a Trinitarian approach to prayer, humility and self-effacement as essential Christian attitudes, the attitude of "Bereitschaft" ("readiness" or "disponsibility") before God, the potential unity between Christian action in the world and action according to God's will, and the reality of Christ's descent into Hell on Holy Saturday. The Spiritual Exercises of Saint Ignatius of Loyola imbue much of her thought.