 A fantasy is a situation imagined by an individual that expresses certain desires or aims on the part of its creator. Fantasies sometimes involve situations that are highly unlikely, or they may be quite realistic. Fantasies can also be sexual in nature. Another, more basic meaning of fantasy is something which is not real, as imperceived explicitly by any of the senses, but exists as an imagined situation of object-to-subject. In everyday life, individuals often find their thoughts pursuase series of fantasies concerning things they wish they could do or wish they had done. Fantasies of control or of a sovereign choice. Daydreams George Eamon Valent in his study of defense mechanisms took as a central example of an immature defense dot dot dot fantasy, living in a Walter Middy dream world where you imagine you are successful and popular, instead of making real efforts to make friends and succeed at a job. Fantasy, when pushed to the extreme, is a common trait of narcissistic personality disorder, and certainly Valent found that not one person who used fantasy a lot had any close friends. Other researchers and theorists find the fantasy has beneficial elements, providing small regressions and compensatory wishfulfillments which are recuperative in effect. Research by Deirdre Barrett reports that people differ radically in the vividness, as well as frequency of fantasy, and that those who have the most elaborately developed fantasy life are often the people who make productive use of their imaginations in art, literature, or by being especially creative and innovative. In more traditional professions.