”Sherlock takes a snapshot of his face and carefully folds it into one of the empty spaces he's been left with, the ones that not even cases and cocaine can eradicate or fill.”

Oh what a beautiful idea – filling empty spaces in his mind with images of John . . .

”"You haven't lost me. You will never lose me." Sherlock's voice comes out as barely more than a whisper. He squeezes John's hand.”

That was a lovely little moment of vulnerability.

”Sherlock is fine with that. And he thinks, against all odds, perhaps that is what will make John fine again too.”

Yes, they’re truly coming to understand each other, and what each means to the other.

It was a very sad tale in a way, but having both reasoned their way through things, they’ve come out stronger on the other side.

I have, indeed, enjoyed the ending to this piece; it makes sense to try for happiness out of the ashes of sadness.