What is another word for "mystery"?

Roget's Thesaurus (1911) lists these synonyms for "mystery": anagram, and, arcanum, article, behind, belief, believer, blind, blush, body, book, born, canonist, catholic, charade, collective, community, conceal, concealed, concealment, confession, confidential, conundrum, covered, covert, crack, creed, crux, curtain, dark, dead, declaration, delitescence, delitescent, denomination, denominational, difficulty, dim, divine, divinity.