Freestyle: "swim with your whole body"

How do we develop a smooth efficient whole body stroke? 

 I think of fish, who shimmer effortlessly through water using their core bodies, using their tails and fins for balance and direction changes. 

 If we can first balance on our sides, flutter kicking, head looking down, leading arm at 45 degrees, relaxed and weightless, ready to "catch", and we get our other arm ready to slice into the next stroke, high shoulder and high hip all snap all together with the last flick of our kick into a balanced position on the other side. That's what this drill on the video is helping a swimmer to feel.