The Eternal mystery (n.) is already in front of you: are you not already watching the snow?
God's mystery (n.) stays sealed forever; even the seraphim veil their faces before Him.
Mysterium tremendum (n.) is the frightful mystery that makes one tremble: infinite love and the gaze of a God who sees me unseen.
Mystery of evil (n.) once the Church set aside the end of time became an ontological structure that blocks any true choice and gives the Church an alibi for its ambiguities.