When you’re fighting a monster it seems like the obvious thing to do, especially from an anthropocentric point of view. But what if there is no obvious head? Or what if going for the head isn’t actually the best thing to aim for (if playing Dark Souls for 2 weeks has taught me anything it’s this).
Sometimes the best way to defeat the monster is not to fuss over the ideal place to attack, but to just attack it wherever you possibly can and hope for the best.