The joy of screaming is something we do as kids.  Think about it, if we adults were to scream as carefree, the neighbors would have thought something was going on!  Maybe that is why roller coasters were created?  Do you remember the last time you screamed for joy, like the kids running through the icy sprinklers? It could be that time you did jump in an icy pool, or that time screaming at the top of your voice at the movies, or even a ride on a motorbike.  Whatever the memory, remember the happy sensations you experienced.  Now expand upon them.  Those sensations are still within you and you can tap into them any time you wish to.  When we expand upon joyful memories, by just remembering them, we integrate positivity.  

This is conscious harmony, which is the essence of Sophrology.