The other day we had a wonderful golden sunset. This is common this time of year. But it is a fleeting thing, gone in a minute or less. I sometimes see a really fine one, but by the time I get the camera it is gone. But that's what a photographer does: chases light, light that is never the same again and when it passes it is gone forever. Photography means "light writing." I like the Irish better: griangrafadoireacht, "the craft of sun-writing."
This is a good time of year for sin-writers. If they are quick enough!