We know about his buildings in honor of St. Felix from literary and archaeological evidence, especially from his long letter to Sulpicius Severus describing the arrangement of the building and its decoration. He includes a detailed description of the apse mosaic over the main altar and gives the text for a long inscription he had written to be put on the wall under the image. By explaining how he intended the visitors to understand the image over the altar, Paulinus provided rare insight into the intentions of a patron of art in the later Empire. He explained his project in a Poem dedicated to another great catechist, St Nicetas of Remesiana, as he accompanied him on a visit to his basilicas: "I now want you to contemplate the paintings that unfold in a long series on the walls of the painted porticos.&nbsp:... It seemed to us useful to portray sacred themes in painting throughout the house of Felix, in the hope that when the peasants see the painted figure, these images will awaken interest in their astonished minds."