1) W.H. Auden's poem "September 1, 1939" references the date of Germany's invasion of Poland at the start of World War II but contains a hidden message about the lack of acceptance of homosexuality in society. 2) Auden uses metaphors like contrasts between light and dark and allusions to historical figures like Martin Luther and Diaghilev/Nijinsky to covertly critique the intolerance faced by homosexuals. 3) The poem was influenced by Auden's own experiences as a closeted gay man and his recent relationship with another man, allowing him to express his views on promoting love and tolerance between all people.