13 The creatures were glowing like hot coals, and I saw something like a flaming torch moving back and forth among them. Lightning flashed from the torch every time its flame blazed up.
14 The creatures themselves moved as quickly as sparks jumping from a fire.
15 I then noticed that on the ground beside each of the four living creatures was a wheel,
16 shining like chrysolite. Each wheel was exactly the same and had a second wheel that cut through the middle of it,
17 so that they could move in any direction without turning.
18 The rims of the wheels were large and had eyes all the way around them.
19-21 The creatures controlled when and where the wheels moved—the wheels went wherever the four creatures went and stopped whenever they stopped. Even when the creatures flew in the air, the wheels were beside them.