The effect of mass migrations has been the creation of radically new types of human being: people who root themselves in ideas rather than places, in memories as much as in material things; people who have been obliged to define themselves--because they are so defined by others--by their otherness; people in whose deepest selves strange fusions occur, unprecedented unions between what they were and where they find themselves. The migrant suspects reality: having experienced several ways of being, he understands their illusory nature. To see things plainly, you have to cross a frontier.
—Salman Rushdie. "The Location of Brazil." Imaginary Homelands: Essays and Criticism 1981-1991.