The Seventh Seal

And when He opened the seventh seal, there was silence in heaven about the space of half an hour. 

There is simplicity in a moral tale. All elements—character, plot, and tone— put the unfolding of a narrative in the service of the moral. Metaphor, exaggeration, unnatural events and characters can all be brought to bear on the moral purpose of the story. Even a filmmaker as grounded in realism as Bergman found in The Seventh Seal (1956), for example, that he had to move away from realism. The moral tale—no man can escape mortality—is his subject, and so death and a plot specifically about the spread of Bubonic Plague, the "Black Death," are his instruments. 

The cooling and depressurization of the reactor coolant system during a long term station blackout is represented with the seventh functional event DEP-SBO. The goal of the depressurization is to reduce pressure and consequential reactor coolant system leak rate, in case any leak develops. Reactor coolant system pressure reduction as well as Seal LOCA risk decrease is achieved by depressurization. However, this reduction of Se LOCA risk is not considered in the model. 

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