Yes! Covfefe!!
Anybody have a big net?
Darkness is where evil hides. They need darkness because if their misdeeds were seen, they would not be able to walk down the street.
Light shines into the darkness and exposes everything. Good people have nothing to hide and they (we) relish the light. Evil fears and flees from light because fear exposure.
Read your Bible, anon. It explains the role of Light more clearly than I can.