ABSTRACT
This chapter explores the symbolism of light in relationship to images of the Stigmatization represented in paint, gold and glass. Emphasis is placed on Bonaventure's writings and interpretation of Neoplatonic metaphysics used to support Franciscan iconography. The chapter discusses variations in meaning within late medieval Franciscan paintings, and the artists' struggle to represent the spiritual light of the stigmata scene through opaque or reflective materials. Giotto's frescos literally highlight the categories of light according to Bonaventure. His Stigmatization is rich in variations of light source, considered one of the innovative elements of the composition, which can still be seen in the Splendour from the fiery Seraph illuminating the scene. Bonaventure's Itinerarium speaks of illumination as natural metaphor, implying that there must be a material or medium through which one understands spiritual illumination. All three types of light were attempted in different ways within the frescoed walls of San Francesco.
