When lost in thought, the body goes into autopilot,
capable of walking to a destination
or obeying green and red traffic lights.
Once, I drove for thirty minutes across town
before realizing my mistake—east, not west.
A psych professor told me that the eyes of someone
in deep thought can mimic REM: eyelids
twitching, blinking hurriedly, till the thinker
resurfaces, a diver coming up for air.