Final answer:
In Gothic art, the idea of radiant light representing divinity, as influenced by Pseudo-Dionysius, was reflected in the architecture and stained glass windows of Gothic cathedrals.
Step-by-step explanation:
In Gothic art, the idea that radiant light represents divinity, as proposed by Pseudo-Dionysius, was reflected primarily through the architecture and use of stained glass windows in Gothic cathedrals. Abbot Suger, a French statesman and historian, embraced the notion that light equates to God and implemented it in the renovations of Saint-Denis Cathedral.
He sought to create light-filled spaces that would transport the visitors to a more heavenly and spiritual place. The thin and intricate stone tracery of the stained glass windows allowed for the metaphorical light of Heaven to shine into the church, reinforcing the connection between light and divinity.