One morning as I strolled along the beach during my yoga retreat in Tulum, Mexico, I picked up a little stick and started drawing mandalas in the sand.
Most of them were swiftly washed away, and I suppose that's the whole point. Tibetan monks spend hours creating beautiful mandalas with colored sand, only to sweep them up when they are complete, symbolizing the impermanence of everything in this world.
I didn't mind one bit. I'd use my beach stick to draw a mandala, then I'd walk a little further and draw another.