Dan is telling us where we are in the timeline of events. The quantity of light in this photo tells us that we have experienced events about 10% that are known (drip drip), and, there is about 90% yet to become experienced or known (flood). I see movement in this photo. Sort of like how the earth rotates and moves from dark to light. At this time, we are on a set path, approaching the advent of the storm/flood. At this time, we can see little, as there is still much darkness and lack of clarity/confusion, but we are slowly moving into the storm when we will see clearly and understand the full picture.