This paper examines Sigmund Freud’s theory of worldview in order to elucidate the characteristics of learning in overseas field education. Based on interpretations of Freud’s texts, this paper describes two distinct types of worldviews. The first is a consistent, self-contained worldview, which aims to defend against a sense of helplessness by covering up the ignorance of the world with illusions. The second is an incomplete worldview containing perceptual gaps. It is characterized by respect for external reality and rejection of all illusions. Cultural differences in worldviews are formed through a superego that represents the cultural past. In conclusion, overseas field education is understood as an educational practice that encourages students to reconstruct their worldviews. Through encounters with different cultures, students become aware of the limitations of their self-contained worldviews and attempt to reconstruct them as incomplete ones.