6.18.17 - blue symbol?

While laying out at the pool, I kept seeing this symbol being drawn in my mind while my eyes were closed. I was laying on my back, just adjusted my hat and briefly looked up towards the sun. I saw the "flashes" you normally see after looking into the sun but that went away quickly. When I closed my eyes, I kept seeing this symbol being drawn, starting from small circle on the left then going counter clockwise. It kept being drawn over and over for 5 minutes or so and was in a blue neon light.