I love this poem by Antonio Machado, a Spanish poet of the early 20th century:

Last night, as I was sleeping
I dreamt – marvelous error! –
that a spring was breaking
out in my heart.
I said: Along which secret aqueduct,
oh water, are you coming to me,
water of a new life
that I have never drunk?

Last night, as I was sleeping
I dreamt – marvelous error! –
that I had a beehive
here inside my heart.
And the golden bees
were making white combs
and sweet honey
from my old failures.

Last night, as I was sleeping
I dreamt – marvelous error! –
that a fiery sun was giving
light inside my heart.
It was fiery because I felt
warmth as from a hearth,
and sun because it gave light
and brought tears to my eyes.

Last night, as I was sleeping
I dreamt – marvelous error! –
that it was God I had
here inside my heart.

– Antonio Machado