What made Stephen Spender write the poem Not Palaces?

The correct title is "I Think Continually of Those Who Were Truly Great. "Stephen Spender wrote this poem in response to the suffering and injustice he witnessed during the Spanish Civil War. He was deeply affected by the plight of the Spanish people, and he felt compelled to write about it. The poem expresses Spender's admiration for those who fought for social justice and human rights, and it also reflects his own commitment to these causes.