結界

けっかいkekkai

noun

1. (fixing) boundaries for religious practices
2. prohibition (of items, people, spirits, etc. that would hinder Buddhist practice)
3. fence between inner and outer sanctums in a temple
4. short two or three-fold lattice around the front desk of a store
5. barrier
6. dimensional barrier
7. containment zone
8. containment barrier

Study it in Yanamino