You've Been Here Too Long

Don't forget what you came here for
Just to walk through that open door
You're just lingering here
In a world that isn't real
At least, not for you
This is my own world, why won't you leave?
For you it's just a passage to somewhere else
Or should be
Why won't you leave?
You're the only thing I can't erase
I just keep telling to you're gone
But you've been here all along