How did Baroque architects use light to create drama inside churches?

Baroque architects utilized light as a fundamental tool to heighten the drama, emotional intensity, and sense of the divine within church interiors. By moving away from the static, balanced lighting of the Renaissance, they employed light to create illusory effects that engaged the senses and directed the worshiper toward spiritual concerns.1

Key techniques included:

• Hidden Light Sources: Architects often concealed the origin of light to create a sense of mystery. By directing natural light onto specific focal points—such as altars or sculptures—from sources hidden above or behind the subject, they made the light appear celestial or supernatural.12
• Dramatic Contrast: Drawing on the principles of chiaroscuro, architects used light to isolate figures or architectural elements against darkness. This harsh, dramatic lighting heightened emotional tension and helped dissolve the boundaries of the physical space, making it feel more dynamic and infinite.13
• Integration with Art: Light was treated as a physical component of the overall decorative ensemble. For example, in the Cornaro Chapel, Gian Lorenzo Bernini used natural daylight to illuminate The Ecstasy of St. Teresa, combining it with gilded rays to create a unified religious drama that included the viewer.2
• Illusionistic Effects: Light was used to manipulate the perception of space, sometimes hiding structural supports to give the impression that domes or canopies were floating on air, thereby emphasizing the power and splendor of the divine.14