From "THE SHAPE OF DOORS"

Rows of circles or rows of boxes,
Joined together or split apart;
Ragged rails or pointed arrows
may jolt the senses and move,
or seem to move,
or force the motionless to move,
Looking for an entrance or the way out,
Injecting, on occasion,
into moments that could even appear inert,
with a force and impact definitively their own.