Songs of Innocence, and Songs of Experience
The Marriage of Heaven and Hell

Once a dream did weave a shade
O'er my angel guarded bed,
That an emmet lost its way
Where on grass methought I lay.
Troubled, wildered, and forlorn,
Dark, benighted, travel-worn,
Over many a tangled spray,
All heart broke, I heard her say:
'O my children! do they cry,
Do they hear their father sigh?
Now they look abroad to see,
Now return and weep for me.