Twilight is an eerie time of day. It is in this evening time, the time of transition from brightness to darkness, that lessens the visual contrast between objects. In bright daylight, there is strong contrast between light and dark. Even at night there is contrast between that which is bright and that which is dark, such as traffic lights contrasted on a dark background of night. But, as twilight settles, everything lessens in contrast.
Distances are hard to judge.
Black and white turns to gray. It is difficult to see sharply and distinctly. It is this sort of condition that has settled into the spiritual condition of men today. It is a compromise of that which is right and wrong. The contrast of distinction has gone.