I have played the guitar for 40 years.  I'm not really good, but good enough.  I'm left-handed and so always played classical guitars.  Whenever I am at home and want music, I pick up my guitar and make it myself.  I seldom play entire songs...just wherever the notes take me.  Something happens in me when I do this...it sounds good and feels good.  It is coming out and going back in.  It seems to comes from a place deep inside, and connects me to this place.