stylistic:tone
Western Europe

The High Middle Ages saw a flourishing of mystical practice and theorization in western Roman Catholicism, corresponding to the flourishing of new monastic orders, with such figures as Guigo II, Hildegard of Bingen, Bernard of Clairvaux, the Victorines, all coming from different orders, as well as the first real flowering of popular piety among the laypeople.

The Late Middle Ages saw the clash between the Dominican and Franciscan schools of thought, which was also a conflict between two different mystical theologies: on the one hand that of Dominic de Guzmán and on the other that of Francis of Assisi, Anthony of Padua, Bonaventure, and Angela of Foligno. This period also saw such individuals as John of Ruysbroeck, Catherine of Siena and Catherine of Genoa, the Devotio Moderna, and such books as the Theologia Germanica, The Cloud of Unknowing and The Imitation of Christ.

Moreover, there was the growth of groups of mystics centered around geographic regions: the Beguines, such as Mechthild of Magdeburg and Hadewijch (among others); the Rhineland mystics Meister Eckhart, Johannes Tauler, and Henry Suso; and the English mystics Richard Rolle, Walter Hilton, and Julian of Norwich. The Spanish mystics included Teresa of Avila, John of the Cross, and Ignatius Loyola.

The later post- reformation period also saw the writings of lay visionaries such as Emanuel Swedenborg and William Blake, and the foundation of mystical movements such as the Quakers. Catholic mysticism continued into the modern period with such figures as Padre Pio and Thomas Merton.

The philokalia, an ancient method of Eastern Orthodox mysticism, was promoted by the twentieth century Traditionalist School.