As I move through a door, I close it behind me.
Closing a door completes a past that I have no reason to revisit.
I close a door on a past experience and move forward with completion.
As I close one door another door opens.
Closing a door allows my path to unfold.
Shutting a door disallows my path unfolding and bars my way.
A shut door blocks my path.
When my path is blocked, I am proceeding in the opposite direction to my path.
My path is never blocked, unless I am blocking my own path by shutting the door to an opportunity.
All doors open to an opportunity.
Whether a door is shut or closed is just a matter of personal perspective.