Darkness, as polar to brightness, is understood to be an absence of visible light. It is also the appearance of black in a color space.
Humans are unable to distinguish color when either light or darkness predominate (W. Wundt, Outlines of Psychology, 1907). In the absence of light, perception is achromatic and ultimately, black.
The emotional response to darkness has metaphorical connotations in many cultures.
Famous quotes containing the word darkness:
“But it is fit that the Past should be dark; though the darkness is not so much a quality of the past as of tradition. It is not a distance of time, but a distance of relation, which makes thus dusky its memorials. What is near to the heart of this generation is fair and bright still. Greece lies outspread fair and sunshiny in floods of light, for there is the sun and daylight in her literature and art. Homer does not allow us to forget that the sun shone,—nor Phidias, nor the Parthenon.”
—Henry David Thoreau (1817–1862)
“I falter where I firmly trod,
And falling with my weight of cares
Upon the great world’s altar-stairs
That slope thro’ darkness up to God,”
—Alfred Tennyson (1809–1892)
“How insupportable would be the days, if the night with its dews and darkness did not come to restore the drooping world. As the shades begin to gather around us, our primeval instincts are aroused, and we steal forth from our lairs, like the inhabitants of the jungle, in search of those silent and brooding thoughts which are the natural prey of the intellect.”
—Henry David Thoreau (1817–1862)