It suggests a complicated, spiritual situation, which can be changed only by a third party; you feel helpless and looking for help
sit in the dark: you need advice
go in the dark: you are tormented by the pricks of conscience, you feel guilty for some reason
find yourself in a dark room, under the ground: you are aware that someone may attack you
stay in the darkness with the others: a plot against the State is possible
receding darkness: the end of the crisis or illness, in any case, the improvement the situation
see the light in the darkness: the hope for better time.