No matter how hard you try, sometimes you can't find someone again. No matter how important they are...

[He closes his eyes for a moment, and forces his posture to relax, to stop huddling in around his crossed arms and move to push the temple door open. He pauses just inside to prop it with a foot for Chikusa.]

...The world doesn't care how much you're meant to be together. You have to make the most of the time you have.