Oximoron is when the poet 2 puts completely opposite, completely exclusive and contradictory concepts into a common unit of thought. By the way, oxymoron is mind-boggling. Here are a few examples of the use of oxymoron: "The stars stir an icy fire over my head" (János Pilinszky: Under the Winter Sky); "… That I love you, you sweet stepmother!" (Attila József: Óda); "Who played some melodies on me, Abrandis of happy suffering…" (Gyula Juhász: I was an instrument…)