The function of a body is to move the various parts
in a coordinated effort to do something.
Such as walking, or talking or waving hello.
Sometimes it can function with a minimal amount of direction
from the higher functioning organ.
Auto pilot for the trained muscles,
such as karate moves or driving the same route to work.
Your brain can worry at other problems
or simply daydream during autopilot.
Then the idea comes and impulses get out of control.
No, running away to Africa is a bad idea.
Yes it is minus 40 Celsius, but still!
Saturn's Premier Poet 