Answer:
It ensures readers ensure its significance in the passage.
Step-by-step explanation:
The passage begins with the author saying that one has to choose between being loved and being feared. Upon choosing fear, the author wants to make sure that his choice is very clear and that there are no misunderstandings. All the effects described in the rest of the passage are derivatives of fear, meaning that fear is essential to the passage. Thus, the author seeks to emphasize the word as much as possible.