Now as I looked at the living creatures, I saw a wheel on the earth beside the living creatures, one for each of the four of them. As for the appearance of the wheels and their construction: their appearance was like the gleaming of beryl. And the four had the same likeness, their appearance and construction being as it were a wheel within a wheel. When they went, they went in any of their four directionswithout turning as they went. And their rims were tall and awesome (Eze. 1, 15-18)
