A little black thing in the snow
Crying "weep! weep!" in notes of woe!
"Where are thy father and mother? Say!"
"They are both gone up to the church to pray
"Because I was happy upon the heath
And smiled among the winter's snow
They clothed me in the clothes of death
And taught me to sing the notes of woe
"And because I am happy and dance and sing
They think they have done me no injury
And are gone to praise God and his priest and king
Who make up a heaven of our misery."
Blake calls attention to the institutions that played a large role in British upper and middle class life: religion and royalty. 
 Although the English people are faithful churchgoers and are loyal to the crown, they fail to pay attention to the lowest, most innocent members of society. The institutions themselves may preach of caring for all people, but they ignore the children who remain in terrible conditions on the streets of London.
The Chimney Sweeper Songs of Experience