pardon me, i think you may have misunderstand: "not revealing shape" does not mean that your movements are invisible. for example, if you need to get some milk from the grocery store, you just walk in and make the purchase, normal, no problem. But say if one was a gangsta with a mac-10 intent on robbing the store and walks in with a swagger... that is revealing shape.
many a times, when talking about this kinda of stuff, a range is involved. from big external movements to very small ones; as i understand the movements did not "go away"; it simply went slowly deeper and deeper inside... till its moving inside...
inside/outside... there is no good or bad, just human precepts. if utter beginner how do you ask to perform silk reeling? perhaps he can do but what meaning or feeling, he cannot taste it... if performed is just like a parrot, no? better to do some tan tui or tkd, or karate
i think some guy said something like what lies before and after us is but very small matters, compared to what lies within us.
cheers, S.