There's a certain Slant of light,
Winter Afternoons--
That oppresses, like the Heft
Of Cathedral Tunes--

Heavenly Hurt, it gives us--
We can find no scar,
But internal difference,
Where the Meanings, are--

None may teach it--Any--
'Tis the Seal Despair--
An imperial affliction
Sent us of the air--

When it comes, the Landscape listens--
Shadows--hold their breath--
When it goes, 'tis like the Distance
On the look of Death--

Emily Dickinson

http://www.poemhunter.com/poem/there-s-a-certain-slant-of-light-258/