A mask  is something one wears to hide what’s inside.  
As a smile shows on the outside tears may be falling within.
Then when danger is present bravery is shown but fear is really felt.
A mask is something worn to hide one from prying eyes for some time alone.
  A mask is something one wears to hide everything behind.
   Unless one wants to show others what one wants them to see.
But sometimes it may take others to look through the mask, to see the true feelings and person beneath.
For we all wear a mask of our own sometimes.