Where does a shadow go

Where does a shadow go after the sun goes down
How long can a heart live on just memory
What happens to a dream after it has been dreamed
And now that you've left me what happens to me

Do I go the way after shadow
Or follow the dream that's been dreamed
And what do I do with this love in my heart
Do I keep it for you or find someone new

Where does a shadow go after the sun goes down
For where that shadow is that's where I'll be found