As a human being, I am rightfully wary of calling anything "perfect." Nature has dealt us a compelling amount of symmetry in this world, but nothing really comes close to an absolute. That is, unless we're talking about the free kick by Southampton's James Ward-Prowse in today's match against West Brom.
The ball is struck cleanly from just South-West of the 18 yard box—with a momentum that nearly carries Ward-Prowse head-over-heels—flying over the wall before dipping neatly into a tiny window in the upper-left corner. Curl, dip, magnificence. It's like Ward-Prowse has touched the hand of God. Or whoever is in charge of free kicks up there. Yeah, that person's hand.