Ezra visibly jolts. "You said that before - The Chosen One." He blinks, a memory not truly his bubbling up and spilling out, of oppressive physical heat, the ice cold of Vader's presence in the Force of Master Kenobi shouting -

You were the Chosen One!

He'd forgotten that. How could he have forgotten that part of the awfulness of Mustafar? And this Obi-Wan, the padawan, has said something about that, when he'd demanded answers about the future.

"What - what does that mean?"