This is reality. It's like a 360 degree roller coaster ride with ups and downs. You are not constantly up and not constantly down. You'll go down suddenly and go up without expecting. It just happens in a sudden movement.

Sudden. Just like a brownout or blackout which by definition, stands for the reduction of electricity in one area. At night, having no electricity means that you don't have light. I mean, light is one of the primary things that you need, right? You'll get through everything if you have light.

After all, we must believe that for darkness shows the stars.

Hey moon, please forget to fall down.

Hey moon, don't you go down.

(P!ATD)

Happiness can be found even in the darkest of times if one only rememvers to turn on the light. 

(Albus Dumbledore, HP3)