My interpretation of "Move by will alone" is an act on instinct, without reason. Something that animals do. You can think like a human but still in narrow-minded contexts.
We've inherited instinct to defend our territory, so it's natural to throw to a stone to stay the stranger but it's silly as well. But animals don't ask an intruder what he wants and our instincts are inherited from animals. That's why people are called silly or talking monkeys in the Right In Two.