The light plays an essential role in our everyday lives. Perhaps it is most obvious when it is not there, when we have to create it ourselves. But that is also when we can regulate it and create the atmosphere we desire.
Natural light from the sun gives us energy. In its absence, we use electric light. Candles can provide extra warmth and create an atmospheric environment. All in all, light is what guides us when it tells us what season and time of day it is. It will forever lead the way.