in `` on the psychology of the uncanny '' written in 1906 , jentsch argued that the discomfort associated with the uncanny stems from a desire for certainty about one 's understanding of the world and that this desire itself stems from a human need to feel at home or at least capable of survival in a world that may otherwise seem essentially unknowable , even potentially hostile : the human desire for the intellectual mastery of one 's environment is a strong one .