You have to have the darkness for the dawn to come

The nearer the dawn the darker the night.

It's always darkest before the dawn

Night's darkness is the bag that bursts with the gold of the dawn.

My night has become a sunny dawn because of you

Why is it that night falls, instead of rising, like the dawn? Yet if you look east, at sunset, you can see night rising, not falling; darkness lifting into the sky, up from the horizon...