"That's it," Elsa says, pleased, "nice and easy. Now, when you make that, how do you feel? Calm, right?"

It's such an important part of all this. She's learned how to stay calm in the face of danger. Anxiety is harder to fight, but with work, she's gotten better at veering away from panic and into peace. The only better feelings for it are love and joy. Joy is hard to fake, but love can be conjured up.

"It helps if you can think of of a time when you were happy," she says, "with a loved one, maybe. A time when you felt loved."