The central thesis of the semiotic perspective in cultural psychology is straightforward—human psychological life in its sign-mediated forms is affective in its nature. We feel into our surrounding world and make sense of our relations with that world—and of the world itself—through the creation and use of signs. Human psychological development is built on affect. Based on the feeling into one’s World, it is further created by developing persons through inventing signs of different kinds to make sense of different settings of subjective uncertainty. This process of making sense is socially guided by the societal norm systems—which as such are also results of human semiotic activity.