Take a look at this wonderful video by Sesame Street about learning to breath in order to calm the inner monster. Easily the best part of the video is the opening lines where Common talks about calming the inner monster... Lyrics below.
"Sometimes the monster that's inside you,
Is a monster that is mad,
Is a monster who is angry,
Is a monster who feels bad.
When your monster wants to throw things,
and your monster wants to shout.
There's a way to calm your monster,
and chill your inner monster out."