It is in public domain that light is a very integral aspect, especially because it helps us have a clear view of things, even during nighttime. Light enables us catch a clear glimpse of things, regardless of the time. In the olden days, there were no lighting devices that were powered by electricity, so they used candles during nigh times. They have since been revolutionized and advanced, and luminary candles are even in the present day widely used, though to serve other myriad purposes.