ourselves into chronic states of chaos because we feel that we can
be gods, and direct our own lives so much better than the God who
made us. We are left in freedom to go according to His laws, or
against them; and we are generally so convinced that our own stupid,
short-sighted way is the best, that it is only because Nature
tenderly holds to some parts of us and keeps them in the rhythm,
that we do not hurl ourselves to pieces. _This law of rhythm--or of
equilibrium in motion and in rest--is the end, aim, and effect of
all true physical training for the development and guidance of the
body._ Its ruling power is proved in the very construction of the
body,--the two sides; the circulation of the blood, veins and
arteries; the muscles, extensor and flexor; the nerves, sensory and
motor.

When the long rest of a body balances the long activity, in day and
night; when the shorter rests balance the shorter activity, as in
the various opportunities offered through the day for entire rest,
if only a minute at a time; when the sensory and motor nerves are
clear for impression and expression; when the muscles in parts of
the body not needed are entirely quiet, allowing those needed for a
certain action to do their perfect work; when the co-ordination of
the muscles in use is so established that the force for a movement
is evenly divided; when the flexor rests while its antagonizing
muscle works, and _vice versa,--_ when all this which is merely a
_natural power for action and rest _is automatically established,
then the body is ready to obey and will obey the lightest touch of
its owner, going in whatever direction it may be sent, artistic,
scientific, or domestic. As this exquisite sense of ease in a
natural movement grows upon us, no one can describe the feeling of
new power or of positive comfort which comes with it; and yet it is