Qrow let out a sigh of relief when she said it wasn't the same as a ghost. Sure, she was alive here, but he couldn't stand the thought of her dying back home. He already hated that he lost people, including Ruby's mom. He didn't want to lose anyone else. Even if Elsa would be alive here.
"I've always figured you were powerful," he said. Because she was, especially when she was in control of her powers. "So there's a spirit for each element?" And whichever Elsa was. Snow and ice? Did those count as elements?