Answer:
This is a dead giveaway
I'm a god, a planet, and measurer of heat. Who am I?
What is something you can hold without ever touching?
What is it that you ought to keep after you have given it to someone else?
What is used by man, tossed by trees, everywhere but unseen?
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.