Each time a piece goes in, I soak up the little shot of dopamine that success experiences release.
It might help that, in this friend's household, it's mandatory to ring the bell when a particularly difficult section comes together, so everyone can look up and give a supportive nod.
The pattern-matching uses a soothingly primitive part of my visual brain, one that's pretty much unaffected by CRPS.
The gentle motion of hand and eye back and forth, back and forth, soothes the central nervous system.
What's ironic is that I realize I'm in recovery from a long damn case of too much too often too fast, but right at this moment, I feel stupider and weaker than I have in months.
I think I'm overdue.