People have a large influence over others when they are in group
Milton is using the nature of darkness to indicate evil, the opposite of God (or "light").
For this reason the fire of Hell has no light. (God and heaven, however, are always described in terms of light.)
As a result, Milton's vision of hell is so dark that it is "darkness visible" -- meaning it is visible evil. In forsaking God, Satan and his companions have forsaken all light as well.
Answer:The controlling idea gives direction to the composition. It lets the reader know what to expect, and it gives a definite focus to the entire composition. 4. The paragraphs in a composition are related to the controlling idea like the sentences in a paragraph are related to the topic sentence
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