" At first it had no name. It was the thing itself, the vivid thing. It was his friend. On windy days it danced, demented, waving wild arms, or in the silence of evening drowsed and dreamed, swaying in the blue, goldeny air. Even at night it did not go away. Wrapped in his truckle bed, he could hear it stirring darkly outside in the dark, all the long night long. There were others, nearer to him, more vivid still than this, that came and went, talking, but they were wholly familiar, almost a part of himself, while it, steadfast and aloof, belonged to the mysterious outside, to the wind and the weather and the goldeny blue air. It was a part of the world, and yet it was his friend.
Look, Nicolas, look! See the big tree!
Tree. That was its name. And also: the linden. They were nice words. He had known them a long time before he knew what they meant. They did not mean themselves, they were nothing in themselves, they meant the dancing singing thing outside. In wind, in silence, at night, in the changing air, it changed and yet it was changelessly the tree, the linden tree. That was strange.
The wind blew on the day that he left, and everything waved and waved. The linden tree waved. Goodbye! "
― John Banville , Doctor Copernicus (The Revolutions Trilogy #1)