For millions of years Australia has been drying out. A quick look at a satellite map and you can see the ancient dried watercourses where the rainbow serpents of old have tracked across the landscape, leaving mineral patterns like paintings. Salt lake chains, remnants of rivers that long ago flowed towards an inland sea. And the young rivers of the south that come to life with the winter rains.
Water is a lens for light: reflecting, shifting, and pattern making.