"Ichigo! What's the difference between a king and his horse?"

"And I'm not talking about obvious stuff, like one's an animal and one's a person or one has two legs and the other has four."

"Form, ability and power. That's what's puzzling. If their form, ability and power are exactly the same, why is it that one's the king and leads them into battle, while the other's the horse and carries the King?"

"So what's the characteristic that distinguishes these two beings? There's only one answer..."