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.
Every night and every morn
Some to misery are born.
Every morn and every night
Some are born to sweet delight.
Some are born to sweet delight,
Some are born to endless night.
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.
Full poem here: https://www.poetryfoundation.org/poems/43650/auguries-of-innocence
Know Thyself 