Answer:
What is it that you ought to keep after you have given it to someone else?
Never ahead, ever behind, yet flying swiftly pastอพ For a child I last forever, for adults I'm gone too fast.
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
Your reflection can be seen here, as long as youโre not moving.
I can be as thin as a picture frame but my insides have many things you can see.
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.