We should note that all of these places of thermal extremes (Finnish saunas, Japanese hot baths, American beaches and mountains) have their opposites close at hand. There are possibly two reasons for having the extremes right next to each other.
The first is physiological: the availability of extremes ensures that we can move from one to the other to maintain a thermal balance.
The second might be termed aesthetic: the experience of each extreme is made more acute by contrast to the other.
Works of art which have great life often have intense contrast within: rough/smooth, solid/void, loud/silent, empty/full. It is the difference between opposites which gives birth to something. Contrast is what often gives other principles their degree of life – the intensity of the boundary, the markedness of the alternating repetition.
Contrast strengthens centers by making each a deeper entity of itself, and thereby giving deeper meaning to both. It is, at its simplest, what allows us to differentiate. But meaningless contrast remains meaningless. It is only when centers are actively, mutually, and meaningfully composed that it acts to deepen the whole.
Abandoned by the world, no longer of use, but still carefully repaired and preserved, these were no ordinary objects. The reasons for their maintenance remain a mystery. At this point, they could only be described as "art". No—not so much "art" as something that exceeds art...
This was 1982, the year that Gary Thomasson was batting cleanup for the Yomiuri Giants. Thomasson had the unfortunate nickname of "The Electric Fan", which, if you think about it, was exactly what he was. Night after night, he stood in the batter's box, whiffing mightily at the ball, down on three strikes every time. He had a fully-formed body and yet served no purpose to the world. And the Giants were still paying a mint to keep him there. It was a beautiful thing. I'm not being ironic here either. Seriously, I can't think of any way to describe Gary Thomasson but as "living hyperart".