Answer:
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter.
Whoever makes it, tells it not. Whoever takes it, knows it not. And whoever knows it wants it not
It is a part of us, and then replaced. It escapes out bodies, to a better place. The world becomes its sizeable home. Its passions unrestraint, the planet it roams.
A morbidlyยญ-named body of water
What is always coming but never arrives?