Answer
The Unity of the Visual Arts refers to Bernini's ability to merge sculpture, painting, and architecture in a way that creates a unified and harmonious work of art. This is evident in his many works, such as the Ecstasy of Saint Theresa and the Baldacchino in St. Peter's Basilica. In these works, Bernini uses sculpture to create the figures, painting to create the background, and architecture to create the setting.