The answer is: "He wants to increase his audience's fear of hell.
That's why he keeps repeating the image of fire, to make a dramatic accent on it in order to implant fear inside their mind.
Answer:
Reflect the reality of the character's situation in a straight forward manor.
Explanation:
Use a pair of commas in the middle of a sentence to set off clauses, phrases, and words that are not essential to the meaning of the sentence. Use one comma before to indicate the beginning of the pause and one at the end to indicate the end of the pause.
I think you should put paratheses around it.
