Back Of My Mind

In the back of my mind, I saw the door. 
In the back of my mind, I went for more. 
In the back of my mind, less than I see. 
In the back of my mind, not enough for me. 

In the back of my mind, I saw the door. 
In the back of my mind, I went for more. 
In the back of my mind, but you shut it on me. In the back of my mind, now what do I see?