Judging by the blank look on Link's face, this explanation means absolutely nothing to him. Not the words she's saying, or how shaping her body means somehow she can fold pieces of metal.

But Link is used to things that don't make sense - he certainly doesn't understand one thing about how Ancient technology works - so he doesn't question it.

"You make swords," he says, in a tone of voice that suggests that this fact may possibly have just made Elma Link's new best friend.