What is the meaning of Mysterie?

Alternative form of mysterium.

mystery

vocative masculine singular of mystērius

Obscure or esoteric religious teachings or beliefs

The obscure significance of generally known religious teachings of beliefs.

A spiritual ceremony or event; especially the Eucharist.

A mystery or unknown; something that is unexplained.

A ceremony or duty, especially a Christian one.

A craft or trade; an organisation regulating such a trade.

Source: wiktionary.org