A SHELL IS NOT ONLY A  THING YOU GO INTO 
 BUT  ALSO  A  THING  YOU  COME  OUT  OF, 
 EXPANDED  IN  MY   BODY  AS   A  TURTLE, 
 BUT  ALSO  AS A HEDGE WHERE YOU MAY LURE 
 YOURSELF  INTO  ONE  SIDE,  AND  YOU MAY 
    BUILD INSIDE, SOMETHING, AND THEN     
        EMERGE INTO SOMETHING ELSE