occultism (Western)
Refers to the study or body of knowledge concerning Western occult traditions, often in a scholarly or systematic context. Not a general term for supernatural phenomena.
彼は大学で神秘学の講義を取っている。
He is taking a course on occultism at university.
Compound of 神秘 (しんぴ, 'mystery') and 学 (がく, 'study'). The term was likely coined to translate Western concepts of occultism as a field of study.