Two paragraphs from Willa Cather’s The Song of the Lark.
Panther Canyon was the home of innumerable swallows. They built nests in the wall far above the hollow groove in which Thea's own rock chamber lay. They seldom ventured above the rim of the canyon, to the flat, wind-swept tableland. Their world was the blue air-river between the canyon walls. In that blue gulf the arrow-shaped birds swam all day long, with only an occasional movement of the wings. The only sad thing about them was their timidity; the way in which they lived their lives between the echoing cliffs and never dared to rise out of the shadow of the canyon walls. As they swam past her door, Thea often felt how easy it would be to dream one's life out in some cleft in the world. From the ancient dwelling there came always a dignified, unobtrusive sadness; now stronger, now fainter,—like the aromatic smell which the dwarf cedars gave out in the sun,—but always present, a part of the air one breathed. At night, when Thea dreamed about the canyon,—or in the early morning when she hurried toward it, anticipating it,—her conception of it was of yellow rocks baking in sunlight, the swallows, the cedar smell, and that peculiar peculiar sadness—a voice out of the past, not very loud, that went on saying a few simple things to the solitude eternally.
Standing up in her lodge, Thea could with her thumb nail dislodge flakes of carbon from the rock roof—the cooking-smoke of the Ancient People. They were that near! A timid, nest-building folk, like the swallows. How often Thea remembered Ray Kennedy's moralizing about the cliff cities. He used to say that he never felt the hardness of the human struggle or the sadness of history as he felt it among those ruins. He used to say, too, that it made one feel an obligation to do one's best. On the first day that Thea climbed the water trail she began to have intuitions about the women who had worn the path, and who had spent so great a part of their lives going up and down it. She found herself trying to walk as they must have walked, with a feeling in her feet and knees and loins which she had never known before,—which must have come up to her out of the accustomed dust of that rocky trail. She could feel the weight of an Indian baby hanging to her back as she climbed.