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.
No legislation could prevent the making of verbal pictures: God walks in the garden, He stretches out His arm, His voice shakes the cedars, His eyelids try the children of men. To forbid the making of pictures about God would be to forbid thinking about God at all, for man is so made that he has no way to think except in pictures. But continually, throughout the history of the Jewish-Christian Church, the voice of warning has been raised against the power of the picture-makers: “God is a spirit”, “without body, parts or passions”; He is pure being, “I AM THAT I AM”.
The fact is, that all language about everything is analogical; we think in a series of metaphors. We can explain nothing in terms of itself, but only in terms of other things.