healthfulness
fitness
performance
Most people have goals of improving their health (weighing less, improve their blood sugar or blood pressure, "core strength," etc) and many appreciate the need to achieve beyond this minimum and have fitness goals (5k time, improved overhead press strength, the ability to meet a greater variety and intensity of daily life functions, etc.). The third category receives disappointingly little attention from the sweating, huffing masses. I think of it as a culmination of of the climb up the ladder from a sedentary lifestyle and/or obesity or from wherever you started. The bodies ability to simply perform, in any given circumstance, can and should be the ultimate crowning achievement for everyone. It isn't just finding yourself to merely be healthy, but knowing that your physiology (anatomy, etc.) can literally perform at a high level. It isn't having a decent ability to stabilize your spine but just being rock solid and injury free.
And let me emphasize this need not be running, riding or rowing in races or pushing, pulling or throwing heavy objects (or even people!), maybe this is simply appreciating the ability to take on any task (likely physical or otherwise) that might come your way in a given day. Pickle jars, heavy boxes, running away from... whatever might need running away from. Whatever the daily challenge may be, and it may simply be a challenge workout on your trainer's whiteboard at the gym... wouldn't it be nice to know that you're up for it, without even knowing what it might be?
"No citizen has a right to be an amateur in the matter of physical training... what a disgrace it is for a man to grow old without ever seeing the beauty and strength of which his body is capable." - Socrates
And part of this, as with the lower states on the scale, is knowing that part of the bodies ability to perform is being structurally sound and stabile enough to avoid the nagging and nattering injuries that plague so many in their day-to-day lives.
The pursuit of these states of the body is not linear and they are, as stated, not mutually exclusive but there is a hierarchy. And if you read Activity vs. Accomplishment you can probably guess my thoughts on climbing this hierarchy.
"Being healthy" is not enough and the state of the body is not static. Get healthy, get fit and then, perform.
