William Blake - Auguries of Innocence

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.
[...]
If the sun and moon should doubt,
They'd immediately go out.
To be in a passion you good may do,
But no good if a passion is in you.
[...]
God appears, and God is light,
To those poor souls who dwell in night;
But does a human form display
To those who dwell in realms of day.