The world is blue at its edges and in its depths. This blue is the light that got lost. Light at the blue end of the spectrum does not travel the whole distance from the sun to us. It disperses among the molecules of the air, it scatters in water. Water is colorless, shallow water appears to be the color of whatever lies underneath it, but deep water is full of this scattered light, the purer the water the deeper the blue. The sky is blue for the same reason, but the blue at the horizon, the blue of land that seems to be dissolving into the sky, is a deeper, dreamier, melancholy blue, the blue at the farthest reaches of the places where you see for miles, the blue of distance. This light that does not touch us, does not travel the whole distance, the light that gets lost, gives us the beauty of the world, so much of which is in the color blue.

For many years, I have been moved by the blue at the far edge of what can be seen, that color of horizons, of remote mountain ranges, of anything far away. The color of that distance is the color of an emotion, the color of solitude and of desire, the color of there seen from here, the color of where you are not. And the color of where you can never go. For the blue is not in the place those miles away at the horizon, but in the atmospheric distance between you and the mountains.

For many years, I have been moved by the blue at the far edge of what can be seen, that color of horizons, of remote mountain ranges, of anything far away. The color of that distance is the color of an emotion, the color of solitude and of desire, the color of there seen from here, the color of where you are not. And the color of where you can never go. For the blue is not in the place those miles away at the horizon, but in the atmospheric distance between you and the mountains.

“Longing,” says the poet Robert Hass, “because desire is full of endless distances.” Blue is the color of longing for the distances you never arrive in, for the blue world.

For many years, I have been moved by the blue at the far edge of what can be seen, that color of horizons, of remote mountain ranges, of anything far away. The color of that distance is the color of an emotion, the color of solitude and of desire, the color of there seen from here, the color of where you are not. And the color of where you can never go.

Leonardo had also been wrestling with the question of why the sky appears blue, and around that time he had correctly concluded that it had to do with the water vapor in the air. In the Saint Anne painting, he portrays the sky’s luminous and misty gradations of blue as no other painter had done. The recent cleaning of the painting fully reveals the magical realism, veiled in vapors, of his distant mountains and skyline.

In the realm of blue air more than elsewhere, we feel that the world may be permeated by the most indeterminate reverie. This is when reverie really has depth. The blue sky opens up in depth beneath the dream. Then dreams are not limited to one-dimensional images. Paradoxically, the aerial dream soon has only a depth dimension… The world is then truly beyond the unsilvered mirror. There is an imaginary beyond, a pure beyond, open without a within. First there is nothing, then there is a deep nothing, then there is blue

beyond the tilled plain, beyond the toy roofs, there would be a low suffusion of inutile loveliness, a low sun in a platinum haze with a warm, peeled-peach tinge pervading the upper edge of a two-dimensional, dove-grey cloud fusing with the distant amorous mist. there might be a line of spaced trees silhouetted against the horizon, and hot still noons above a wilderness of clover, and claude lorrain clouds inscribed remotely into misty azure with only their cumulus part conscpicuous against the neutral swoon of the background. or again, it might be a stern el greco horizon, pregnant with inky rain, and a passing glimpse of some mummy-necked farmer, and all around alternating strips of quick-silverish water and harsh green corn, the whole arrangement opening like a fan, somewhere in kansas.

One night I went for a walk by the sea along the empty shore. It was not gay, but neither was it sad; it was- beautiful. The deep blue sky was flicked with clouds of a blue deeper than the fundamental blue of intense cobalt, and others of a clearer blue, like the blue whiteness of the Milky Way. On the blue depth the stars were sparkling, greenish, yellow, white, rose, brighter, flashing more like jewels than they do even in Paris. The sea was a very deep ultramarine.

The sky was rarely more than pale blue or violet, with a profusion of mighty, weightless, ever-changing clouds towering up and sailing on it, but it has blue vigour in it, and at a short distance it painted the ranges of hills and the woods a fresh deep blue.

The air is of silver and pearl, the night is liquid with moonlight.

The equidistant sea and sky were divided for her by the line of gravity like an hour-glass, through which a ship wrapped in pink-mauve haze passed from one element to the other, coming down over the horizon

This unlikely story begins on a sea that was a blue dream, as colorful as blue-silk stockings, and beneath a sky as blue as the irises of children's eyes.

But you want to remember that below the sea of clouds lies eternity.

The ice is not very thick; the ocean beneath it is deep and tempestuous; and the sun above is warm and melting.

Consider the subtleness of the sea; how its most dreaded creatures glide under water, unapparent for the most part, and treacherously hidden beneath the loveliest tints of azure.