Like Donnell Alexander says, "It's about completing the task of living with enough spontaneity to splurge some of it on bystanders, to share with others working through their own travails a little of your bonus life."
But, it's mostly the kind of place that folks looking for "girls and cars" stumble across by accident.
Those are some on-purpose stones there–all of them were, at one point, painted black. Not sure what their purpose is, but they are on purpose.