A shadow cast by sunlight is unmistakable. A shadow cast by the moon is no less a shadow because it is not cast by the sun.  A shadow cast by false light is no less a shadow because it is not cast by the moon. A shadow cast by a moonless sky is no less a shadow because we can barely see it. A shadow is a shadow despite the source of its existence, despite how visible it may be, and despite who or what may or may not be present to witness of its existence. Shadows exist because there is light. Given enough light, however, shadows can shrink, fade, and vanish. Surround an object at every angle with enough light, and the shadows have nowhere to fall; nowhere to exist.

The same is true of darkness. Take away all light and darkness follows, fills, and devours. Shadows are the beginnings of darkness. The more light obscured, the greater the shadow. The greater the shadow, the greater the darkness. The more things set about an individual to obscure light, the more darkness surrounds the individual. But, as long as one can see shadow, one has naught to fear. Where there is shadow there is light. Shadows cannot exist without light. It is when one can no longer see the shadow for the consuming, eternally hungry darkness that one should fear, for the light is there no longer.