Disciplina Arcani (Discipline of the Secret), a 17th century term applied to the custom of the early church which treated certain rites as mysteries and withheld them from the knowledge of the uninitiated.

Disciplina Arcani（秘密纪律），一个 17 世纪的术语，适用于早期教会的习俗，将某些仪式视为奥秘，不让外行知道。