The Kitchen Chair

You know that the legs
are the same length,
that the seat is a decent
distance from the floor,and
the chair back supports your back
and your legs touch the ground
Now pick up a pencil
and draw the chair
Odd at how the seat
flies in the air
and the legs can't
stay on the floor
at the same time,
and your toes
touch the ground
but your heels don't