She'd been being sincere, remembering those two pursuits as helpful in moments very similar to Cortana's moments of confusion.

Swimming, then. It was something difficult to explain to someone who couldn't feel the damp of the water, the way it closed all around you without being oppressive, they way it freed you to glide to the surface or plunge down to the depths, a whole new dimension of movements.

"I like it," she said simply. "Your whole body moves differently. You can clear your head."