The sun is eternal; though it sinks in the night, it always promises to return in the morning, leaving its regards in the shades of pink and purple and orange in its wake.
The sun's light is not something to be shied from; and yet, for some, their skin burns, and their pupils dilate.
The sun infallibly casts a shadow; it is here that the weary rest, in the coolness of the temporary dark, hidden for just a moment from the eye of the universe.
There is no shadow without light; however, there can be light which does not cast shade. The sun is eternal; therefore, the shadows stretch on forever.