III. That we are most unconscious of and have least control over
our digestion and circulation--powers possessed even by our
invertebrate ancestry, and, geologically speaking, of extreme
antiquity.
I have put the foregoing very broadly, but enough is given to show
the reader the gist of the argument. Let it be noted that
disturbance and departure, to any serious extent, from normal
practice tends to induce resumption of consciousness even in the
case of such old habits as breathing, seeing, and hearing, digestion
and the circulation of the blood. So it is with habitual actions in
general. Let a player be never so proficient on any instrument, he
will be put out if the normal conditions under which he plays are
too widely departed from, and will then do consciously, if indeed he
can do it at all, what he had hitherto been doing unconsciously. It
is an axiom as regards actions acquired after birth, that we never
do them automatically save as the result of long practice; the
stages in the case of any acquired facility, the inception of which
we have been able to watch, have invariably been from a nothingness
of ignorant impotence to a little somethingness of highly self-
conscious, arduous performance, and thence to the
unselfconsciousness of easy mastery.
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