' as i looked at the living creatures, i saw a wheel on the ground beside each creature with its four faces. this was the appearance and structure of the wheels : they sparkled like topaz, and all four looked alike. each appeared to be made like a wheel intersecting a wheel. as they moved, they would go in any one of the four directions the creatures faced ; the wheels did not change direction as the creatures went. their rims were high and awesome, and all four rims were full of eyes all around.'