Studies show that daylighting can increase comfort and well-being.
However, care must be taken to avoid the design mistakes that can cause thermal or visual discomfort. It is the best light source for color rendition, and its variability is pleasurable. This is not surprising since humans evolved in a world lit by sunlight. We enjoy changes in sun patterns because they are interesting and help keep us connected with the world outside. Windows provide view, which helps us stay alert and keeps us in contact with the outside.