What are yokai and how does Foster’s explanation of Japanese “monsters” match or clash with your understanding of the world?How do you interpret “fear” as an analytical category for historical study?

Medieval monsters
After these readings
1. How do you interpret “fear” as an analytical category for historical study?
2. What are yokai and how does Foster’s explanation of Japanese “monsters” match or clash with your understanding of the world?
Readings:
Michael Foster, Introducing Yokai
Fear and Anxiety: Writing about Emotion in Modern History Author(s): Joanna Bourke