mystery

noun

Occupation; trade; office; profession; calling; art; craft.

Plural In ancient religions, rites known to and practised by certain initiated persons only, consisting of purifications, sacrificial offerings, processions, songs, dances, dramatic performances, and the like.

In the Christian Church, especially in the early church and in the Greek Church, a sacrament.

Plural The consecrated elements in the eucharist; in the singular, the eucharist.

Any religious doctrine or body of doctrines that seems above human comprehension.