What if I forgave myself? I thought. What if I forgave myself even though I'd done something I shouldn't have? What if I was a liar and a cheat and there was no excuse for what I'd done other than because it was what I wanted and needed to do? What if I was never redeemed? What if I already was?

The universe, I'd learned, was never, ever kidding. It would take whatever it wanted and it would never give it back.

I could go back in the direction I had come from, or I could go forward in the direction I intended to go.

I'll never know, and neither will you of the life you don't choose. We'll only know that whatever that sister life was, it was important and beautiful and not ours. It was the ghost ship that didn't carry us. There's nothing to do but salute it from the shore.

There is a path toward the light. The one that goes blink, blink, blink inside your chest when you know what you're doing is right. Listen to it. Trust it. Let it make you stronger than you are.

I made it the mantra of those days; when I paused before yet another series of switchbacks or skidded down knee-jarring slopes, when patches of flesh peeled off my feet along with my socks, when I lay alone and lonely in my tent at night I asked, often out loud: Who is tougher than me? The answer was always the same, and even when I knew absolutely there was no way on this earth that it was true, I said it anyway: No one.

My mother's last word to me clanks inside me like an iron bell that someone beats at dinnertime: love, love, love, love, love.