The VOR radiates an omnidirectional signal- in other words it goes out in all directions.
This, versus an ILS signal which is "beamed" in a very narrow sector. The VOR signal is electrically phased so that the received signal is different in various parts of the 360 degree circle. For simplicity's sake in this discussion I will refer to the VOR as if it had 360 radials. In reality the signal is infinitely variable.