Does voltage flow in a circuit Explain?

Voltage in an electrical circuit is the rough equivalent of pressure in a water pipe.

It causes the electricity to flow. Higher voltage; more flow.

The difference is that you can think of pressure applied at a single point, but

voltage is always the difference in electrical potential between two points.

That's how a bird can stand on a 7,000-volt rural electrical line without harm.

The potential difference (voltage) between the line and the ground is 7,000 volts,

but the potential difference (voltage) between the bird's two feet is very tiny.