Answer:
High born, my touch is gentle. Purest white is my lace. Silence is my kingdom. Green is the color of my death.
Slayer of regrets, old and new, sought by many, found by few.
My first is nothing but a nameอพ my second is more smallอพ my whole is of so little fame it has no name at all.
Two brothers we are, great burdens we bear. All day we are bitterly pressed. Yet this I will say, we are full all the day, and empty when go to rest.
What surrounds the world, yet dwells within a thimble?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.