The internalized attitudes, expectations, and viewpoints of society is called generalized other.
In sociology, generalized other is described as an individual's internatilized impression and expectation of other people in society. The term derives from George Herbert Mead's "The I and the Me" theory.
Ans: It is also talking about how the flash would lay hold on them , but given the fact the flash is not human, as said before, it is a personification. Edwards used it to explain that after death, for most of the congregation, that there was nothing but horror awaiting them bevause they had angeried God.