What is the message that Stephen …

Stephen Spender talks about social injustice and class inequalities in the poem. The children in the elementary school in the slum are far away from the grandeur of the progressive outside world. Their future is painted with fog i.e. they have no hope of improvement. They are shut off from the world of the elite and the priveledged. They  are far away from the  beauty of literature and continue their lives in cramped holes...i.e their life is buried under catcombs(underground cemeteries). Only the people in authority can change their miserable lives and help them to rewrite their history. 

In this poem Stephen Spender describes the theme of social injustice and class inequalities of civilized and poor slum people. The civilized world is educated, progressive and developed. The other world belongs to the slum children of Tyrol valley who need education and they live in cramped holes. He wants then to fulfil this gap and requests the civilized people to educate and raise them.