Answer:
What has thirteen hearts But no body or soul?
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
White bird, featherless, flying out of paradise. Flying over sea and land. Dying in my hand.
What is the heart of many risks, has a heart, but is not a living being?
You can always find me in the past. I am created in the present, but the future can not change me. What am I?