[ It's better that he doesn't know about the prickling. She attributes it to prehistoric instincts.

His remark about being outside again makes her nod, thoughtful. ]

So many cultures celebrate festivals of light during the winter. We were diurnal hunters-gatherers for a long time. We need the light. We depend on it.

[ And air... god. Yes, it's good that he doesn't ask for the story. Stories, in fact. Those are far too personal. ]