p & ~p

I am a sign that reveals

Something true by displaying

My own emptiness.

I am indispensable.

I am both internal and

External to my language.

The regress never begins.

The regress never concludes.

I am, but I am not I.

I is. I am is two doors.

I is mimetic gesture.

I displays an act

Without being it,

In and out of doors.