Sometimes, it's an accidental discovery.

We spent Easter with friends in the small town of Mudgee, New South Wales - a 4h drive from Sydney, over the Blue Mountains - but it was an artwork I'd stumbled across days before, down a laneway near home, that stuck in my mind while I was there.

DIRECT SUNLIGHT, it read - painted on the street, in an alley so narrow it would hardly ever actually get sun, except the way it did when I was there: bounced off the windows of a building.

But the rest of us do, in this country. You can hardly avoid it.

It defines the place.