Ca. 1638. Oil on canvas, 159 x 239 cm.
The saint is depicted among ruins, imploring God to protect him from some small devils who disturb his spiritual retreat. The most striking element in the composition is its sophisticated lighting, which is both compositionally and symbolically complex. As a nocturnal scene, this work is unique within Claude's oeuvre. It was painted for the gallery of landscapes in the Buen Retiro Palace.