Solid Crystal Cube

Solid Crystal Cube
A perfect cube.
 It is strong and holds in everything.
All sides are sealed.
 There is an opening that moves around - it never is in the same place twice.
 It has to move - because when it does open something difficult comes out. 
And so to avoid getting opened again the door moves 
No one wants to deal with the difficult inside.
 Keep it all inside - locked up, tied up, choked up
Please keep smiling.
Everything stays on the surface.
Don't go too deep - no one can go there.  Its dark in the deep. 
(Is it really dark ?  Or is it just that you have to engage to see the light? )
No its dark, everyone has told me so
Or its stupid or dull, I've been told
I see a hollow crystal cube -perfect with strong walls
Inside I see the things that no one wants me to let out.
A fairy, light as air and beautiful. Iridescent wings to fly her high as she can go, chiffon dress flowing blond hair falling loosely around her face. 
A dark witch, all black velvet robes and ruby red jewels.  Pale cold skin, green eyes flashing waiting to take over everything that should be hers.
A child - innocent and shy, eyes wide with wonder at everything she sees - reaching out to touch everything softly and just longing to be part of something beautiful.
An old woman peering suspiciously at everything around her, not trusting the air she breathes.  The color of her skin and hair unseen hidden by the clothes used as a shield
No matter which one gets out of the cube there is someone waiting to tell her No
That this person she is today is not right - she has strayed to far from the center today.
So the cube closes the seal is made tight until the door is found again
And then again for just a moment, a short precious moment when all the things get out.