Funny thing about parables – the good ones get our inner violins tuned up, but I've yet to find one that brings in the whole orchestra. I'm still looking. Anyway, try this little tale, which is not - at first - about presentation skills.
Heard this old line? Hold a pen in your lips (parallel with lips) to make a forced smile, keep smiling, remove the pen – and you get to feel happier. When I first heard it, I scoffed. I thought surely such change can only come from the inside.
I was wrong. Sure, the pen is trivial, but the concept is not. Our bodies really can change our minds. Or, more accurately, we can use our minds to make our bodies change the way we feel. And ultimately to redefine who we are.