Smeeth's Law of Tennis

This sudden thought just came to me, and thus, I coin Smeeth's Law of Tennis:
I play better when I haven't played in a while. As in, a couple months up to a year off of tennis always ends up with me playing better, or at least on par, with how I'd been playing when I was active and playing tennis. I think this is partially due to the fact that I forget about the bad parts of my service game.