If  the doors of perception were cleansed every thing would appear to man as it is, infinite.
For man has closed himself up, till he sees all things thro' narrow chinks of his cavern.
 
(William Blake, The Marriage of Heaven and Hell, plate 14)
 
zu Aldous Huxley: The Doors of Perception
 
 
To see a World in a Grain of Sand
And a Heaven in a Wild Flower
Hold Infinity in the palm of your hand
And Eternity in an hour
 
William Blake: Auguries of Innocence (in: The Pickering Manuscript)