In Praise of Darkness
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One summer some years ago, on a peninsula jutting off another peninsula off the west coast of Iceland, I lived among strangers and birds. The birds were mostly new species I got to know a little, the golden plovers plaintively dissembling in the grass to lead intruders away from their nests, the oystercatchers who flew overhead uttering unearthly oscillating cries, the coastal fulmars, skuas, and guillemots, and most particularly the arctic terns. The impeccable whiteness of their feathers, the sharpness of their scimitar wings, the fierceness of their cries, and the steepness of their dives were all enchanting.
Terns were once called sea swallows for their deeply forked tails and grace in the air, and in Latin, arctic terns were named sterna paradisaea by a pietist Danish cleric named Erik Pontoppidan, at the end of a turbulent career. It’s not clear why in 1763 he called the black-capped, white-feathered arctic terns sterna paradisaea: birds -- or terns -- of paradise. He could not have known about their extraordinary migration, back in the day when naturalists -- and Pontoppidan himself in his book on Norway -- thought swallows buried themselves in the mud in winter and hibernated, rather than imagining they and other birds flew far south to other climes.
Of all living things, arctic terns migrate farthest and live in the most light and least darkness. They fly tens of thousands of miles a year as they relocate from farthest north to farthest south. When they are not nesting, they rarely touch ground and live almost constantly in flight, like albatrosses, like their cousins the sooty terns who roam above the equatorial seas for years at a time without touching down. Theirs is a paradise of endless light and endless effort. The lives of angels must be like this.The far north is an unearthly earth, where much of what those of us in temperate zones were told is universal is not true. Everyone walks on water, which is a solid. In winter, you can build palaces out of it, or houses out of snow. Ice is blue. Snow insulates. Water crystallizes into floating mountains that destroy whatever collides with them. Many other things turn hard as rock in the cold. Nothing decays, and so time stops for the dead, if not the living. Cold is stability and warmth can be treacherous.
Trees dwindle; shrubs cling to the ground; and further north nothing remains of the plant kingdom but low grasses, diminutive flowers, mosses, and lichens hidden beneath the snow part of the year; and nearly every species but the reindeer and some of the summer birds is carnivorous. In winter, light can seem to shine upward from the white ground more than from the dark sky where the sun doesn’t rise or rises for an hour or two a day. And at the poles themselves, there are not 365 days per year but one long night and one long stretch of light, and the sun rises once in the spring and sets once in the fall.
Their opposite is the equator, where every day and every night of the year is exactly twelve hours long. The further north or south you go, the longer summer days and winter nights get. In Iceland, each day of spring was several minutes longer than the one before, so that in May the days went from nearly 17 to 20 hours long, and by June there is no true darkness, no night. The sun dipped low around midnight or after and there were spectacular sunsets that melted into sunrises, because the sun never went entirely away.