Answer:
It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.
A crafty use of long pieces of wool to make a scarf.
What goes up when rain comes down?
What goes trough your head but you forget it like 3 days after?
What hatches without food?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.