books.google.com - This study looks into the possible spiritual influences that contributed to Francisco de Zurbaran's austere depictions of Saint Francis of Assisi. Zurbaran's style was ideal for the visualization of the spiritual experience; his paintings pulsate with mysticism while conveying a meditative stillness...http://books.google.com/books/about/Radiating_Austerity_Disproving_Quietism.html?id=mYq5Chn7esoC&utm_source=gb-gplus-shareRadiating Austerity: Disproving Quietism in Francisco de Zurbaran's Penitential Images of Saint Francis of Assisi