The thoughtful use of natural light is a cornerstone of biophilic wellness design. Exposure to daylight boosts vitamin D production, supports circadian rhythms, and promotes overall health. Large windows, skylights, and light wells allow sunlight to stream into interiors, creating a warm, dynamic quality that shifts throughout the day. Visual connectivity to the outdoors—such as vistas of gardens, water features, or greenery—enhances spatial perception and contributes to a feeling of openness and freedom. Harnessing both direct and indirect light transforms interior environments into places where people feel energized, balanced, and at ease.