Night

The night, when the light goes and the darkness comes. I remember seing a documentary about all the diferent reactions that the darkness of night brings.. the "gosts" that come along, the sadness due to lack of sunlight, and even a sense of less space in the room. We often associate the feer of darkness to children, but it's far from a child problem, more adults than we think have some kind of difficulty when the sunlight goes to sleep...
Do monsters live under the bed, or right in our mind...? Is the light only brigtness or a doorway to everyting outside...? Should we turn the light on...?