Are you mine?

Where do you look,
When you have no reflection?
What do you own,
When you have no possessions?
What do you eat,
When the food is all gone?
What do you drink,
When of water there is none?
Where is the sun,
If the moon is in your eyes?
What is my heart,
If ‘tis not a prize?
How do you turn,
Upon a straight line?
If I am yours,
Then are you mine?