The hands are the first point of contact with the piano, hence we must make sure they are solid
Brain needs a good mental picture of our body in order to function well
We don't want compression, we want extension type of a move
It's something we have to think about, incorporate it and it eventually becomes a second nature
Almost everybody looses their focus very quickly into the practice round. A few ideas from Alan on the subject
If it's not debilitating, it's kind of good for you