The notion that there is a Designer, or perhaps multiple Designers, working behind, above, or outside the world micromanaging the universe, and that we can see the evidence of "His" handiwork by observing a certain ORDER in the universe is the argument for Intelligent Design. In this case Frost turns the same tortured reasoning around to suggest the existence of evil or darkness in the natural world.

What but design of darkness to appall?
If design govern in a thing so small.


Elj