Abstract
The mystical and spiritual authors of the thirteenth to eighteenth centuries provided rich inspiration for Kierkegaard's religious thought. Kierkegaard owned numerous works by these authors, who are associated with the spiritual traditions of Rheno‐Flemish mysticism, Devotio Moderna, post‐Tridentine and Baroque Catholicism, and Reformed Pietism. The accurate spiritual diagnostics and the apt methods of spiritual formation found in (Pseudo‐)Tauler, Theologia Deutsch, Abraham a Sancta Clara, and François Fénelon deeply impressed Kierkegaard. He adopted and further developed motifs from the mystical and spiritual authors in a variety of his writings, and his journals contain abundant reflections on themes from Thomas à Kempis, Ludovicus Blosius, and Gerhard Tersteegen, such as the imitation of Christ, spiritual guidance, or divine pedagogy. The best testimony to the importance of spiritual literature for Kierkegaard is the fact that he sought counsel in it in a personal crisis when he was deciding on the future of his religious authorship.