Wheel: Symbolical

When I looked at the living creatures, I saw a wheel on the ground beside each creature with its four faces. …

It was the sound of the wings of the living creatures brushing against one another and the sound of the wheels beside them, a great rumbling sound.

Then I looked and saw four wheels beside the cherubim, one wheel beside each cherub. And the wheels gleamed like a beryl stone. …

Then the cherubim, with the wheels beside them, spread their wings, and the glory of the God of Israel was above them.