Devanny joined the
Communist Party of Australia in the early 1920s, and had a long-term affair with the general secretary
Jack Miles; called "Leader" in her memoirs. Despite that, many in the party disagreed with her "forthright avant-garde views" and her candid discussion of sexual activities and women's sexuality. Devanny used her novels as a way of expressing ideological principles. During the 1930s, she toured North Queensland to spread propaganda for the communist movement.
Sugar Heaven was written during that period, drawing upon her experiences working as a domestic servant on a sugar plantation, and was intended to be a form of propaganda. Despite the egalitarian ideals espoused by communist ideology, the party leadership was dominated by men, who often adhered to the idea that women's participation in politics should be restricted to a supporting role. Although she remained a staunch communist after leaving the Communist Party, she often expressed disagreement with other communists of the time, most notably
Pablo Picasso, of whom she reportedly said: "Picasso hasn't got any political opinions. His work proves that. He's only got a sentimental attachment to the idea of social justice". Despite decreasing her political activity in her later years, she continued to express her opinions on local, national and global political events and figures. == Later years ==