Odo: Forgive me, Major, I don’t mean to be difficult, but your faith seems to have led you to something of a contradiction.
Kira Nerys: I don’t see it as a contradiction.
Odo: I don’t understand.
Kira Nerys: That’s the thing about faith. If you don’t have it you can’t understand it, and if you do – no explanation is necessary.

Star Trek: Deep Space Nine, Season 4: Episode 17 – “Accession”