A maglev train is riding because the magnets in the train are reflecting their magnetic field on the aluminium rail, so it is lifted up. Also when you rotate a aluminium plate and you hold a magnet above it, it will reflects his own magnetic field (north or south)and is repeling it.
In a way you can compare it with looking in the mirror. You can see yourself because light is reflecting on the mirror back to you. But in case of a mirror you won't need any movement, but why is that in case of magnetic fields?