Narcissism is a self–centered personality style characterized as having an excessive preoccupation with oneself and one's own needs, often at the expense of others.

In Greek mythology, Narcissus was a hunter from Thespiae in Boeotia who was known for his beauty which was noticed by all, regardless of gender. According to the best known version of the story, by Ovid, Narcissus rejected all advances, eventually falling in love with a reflection in a pool of water, tragically not realizing its similarity, entranced by it. In some versions, he beat his breast purple in agony at being kept apart from this reflected love, and in his place sprouted a flower bearing his name.