People with four shadow wings running on the grass in the early evening

In the early evening, people are running around on the grass in the light of four towers at the corners of the meadow. It's as if they all have four wings made of shadows, flapping as they run, but they never lift off into the air. As they move, they form lines across the grass, and their shadow wings blend briefly into each other and form larger patterns, chains of X's moving closer to each other and then farther apart. Sometimes almost everyone runs quickly in one direction, only to turn around and run quickly in the other, chasing and kicking the ball that they mostly avoid touching with their hands. (Andrew Shields, #111words, 11 May 2023)