This chapter offers a materialist reinterpretation of Plato’s notion of divine art through the lens of Gustavo Bueno’s Philosophical Materialism. Rejecting traditional conceptions of ‘pure’ or ‘autonomous’ art, the authors argue for a theory of substantive art, wherein artworks attain a suprasubjective dimension that transcends the intentions of their creators. Drawing from Plato’s dialogues Ion and The Laws, the chapter explores how the idea of divine inspiration—often misunderstood as mystical—is reinterpreted by Bueno as the material substantivity of the artwork, which operates beyond the servile techniques that constitute it. The analysis culminates in a philosophical reading of Gutierre de Cetina’s madrigal Ojos claros, serenos, interpreted not as a subjective lament but as a poetic structure that objectifies desire into a universal conflict—the ‘discontinuity of essences’. The chapter thereby challenges both idealist and reductionist materialist approaches to aesthetics, offering instead a rigorous ontology of the artwork as a structure embedded in ontological-general Matter. Through this approach, Platonic divine art is rethought not as mythological fantasy, but as an early expression of the complex ontology that underlies all substantive artistic creation.