The document discusses allusions through examples and definitions. It provides examples of allusions referring to Atlas carrying the weight of the world, having the wisdom of Athena and beauty of Aphrodite, and a smile resembling a famous painting. It then defines an allusion as an indirect reference to a well-known person, place, event, literary work, or art. The document discusses identifying allusions in songs and distinguishes between allusions and illusions. It provides additional examples of allusions from students' writing.