Have you ever noticed how lights seem brighter in the dark. Like Christmas lights they shine brighter and more beautiful in the dark.
Gods light is like this, he shines in and through us as we grow in relationship with him and choose to let him shine instead of us. When we are in a dark situation he can be that light and shine for us and to others, showing them the way out of the darkness.
So we should not fear the darkness, but look at it as an opportunity to shine Jesus brighter.