Agree. To expand a little on that, the ILS (Instrument Landing System) creates a "cone" of protected airspace from the final approach fix (center base of the cone, typically on the centreline, 2000 feet above and 6.2 nm laterally from the touchdown point) to the touchdown point on the runway (tip of the cone). As long as you're inside this cone (and above the decision altitude), you're protected from flying into the ground or other obstacles.
The ILS gauge in the cockpit shows you where you are relative to the center of the cone. If the deflection is too high, you run the risk of flying outside the protective cone. Which is bad. So you go around.