With the photo project "What nature knows", Rognli draws in references from his affiliation with Arctic Northern Norway, to light, darkness and the seasons. He transforms ordinary landscapes into an enigmatic place to be and takes us on a visual experience in the evening and the atmosphere of the night. In the project he immerses light installations in water, and creates harmony where there is conflict between the elements. He illuminates nature with LED lights, luminescent material, and uses photographic effects.

The project reminds us of our connection to nature, and according to the Biophilia hypothesis introduced by the American biologist Edward O. Wilson, humans have an innate instinct to connect emotionally with nature and other life forms, including natural light and light changes.