Answer:
Whoever makes it, tells it not. Whoever takes it, knows it not. And whoever knows it wants it not
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
It is an arctic double breasted formal wear.
What do you fill with empty hands?
What goes up when the rain comes down?
Special abilities and brightly colored underwear are all you need to be one of these.