[It's not like Yasusada doesn't get the point he's making, but he smiles a little, shaking his head.]

Maybe it's different for you--but swords and humans go together. We were made by them, for them. Without humans, we wouldn't exist at all.

[Both in the sense of having no purpose, and quite literally; the metal that forms his body would be nothing more than a lump of iron in a mountainside. With no one to have wielded and loved him as they did, he never would've come into being.]