What does Ezekiel 10:13 mean?

As for their appearance, the four of them had one likeness, like a wheel within a wheel.

When they went, they went in their four directions. They didn’t turn as they went, but to the place where the head looked they followed it. They didn’t turn as they went.

Their whole body, including their backs, their hands, their wings, and the wheels, were full of eyes all around, even the wheels that the four of them had.

Every one them had four faces. The first face was the face of the cherub. The second face was the face of a man. The third face was the face of a lion. The fourth was the face of an eagle.

The cherubim mounted up. This is the living creature that I saw by the river Chebar.

When the cherubim went, the wheels went beside them; and when the cherubim lifted up their wings to mount up from the earth, the wheels also didn’t turn from beside them.