Answer:
They're big and yet so far away, We see them at the end of day. They're small and they're above. We see them when we close our eyes, Each time we are in love.
What is it that after you take away the whole, some still remains?
What can be seen but not touched?
What word is the same written forward, backward and upside down?
You're currently trying to solve one
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.