I come from a world of conservative Christian thought. I've absorbed Christianity with my mother's milk. So it must be obvious that certain... archetypes, aren't they called? — stick in one's mind, and that certain lines, certain courses of events, certain ways of behaving, become adequate symbols for what goes on in the Christian system of ideas. … I keep myself supplied with my own angels and demons...
Torsten Manns interview. - Bergman on Bergman (1970)