“As I was walking among the fires of Hell, delighted with the enjoyments of Genius, which to Angels look like torment and insanity, I collected some of their Proverbs; thinking that as the sayings used in a nation mark its character, so the Proverbs of Hell show the nature of Infernal wisdom better than any description of buildings or garments.
When I came home, on the abyss of the five senses, where a flatsided steep frowns over the present world, I saw a mighty Devil, folded in black clouds, hovering on the sides of the rock; with corroding fires he wrote the following sentence now perceived by the minds of men, and read by them on earth:
How do you know but ev’ry Bird that cuts the airy way,
Is an immense World of Delight, clos’d by your senses five?”– William Blake, The Marriage of Heaven and Hell