We sometimes like to disregard what is expected of us in life and follow our own wishes. Even as little children, we would take a run and jump and land on our two feet just to see how far or high we could get. Or going out into the park and kicking the dead Autumn leaves over; throwing them up into the air and watching them fall to the ground just for the fun of it.
Traces are the leather harness straps by which a horse is attached to a wagon or cart. If the horse becomes restless, it can kick out and end up stepping over the traces and the rider has no control in steering or stopping. Someone who rebels against convention has kicked over the traces. Be different, be positive, and turn over a new leaf this Autumn.