The air was beginning to shimmer a warm golden grey as we pulled up to the summer home in Hämeenlinna. It sits by a lake, of course. Between the house and the lake are apple trees and a sauna. The light wrapped us, holding on a little longer, and then it departed. By this hour, dinner had been made, and we ate. And then, flashlights in hand, we walked down to the sauna and disrobed.     The changing room exuded the familiar sauna smell of wood, birch, damp. I stacked my clothes in a little pile. The lack of electricity emboldened me somewhat: we were girls and guys together. Despite being no sauna newbie, this was fresh to me. I had been camping…