It is to give your own personal experience or write about anothers experience.
It's a metaphor.
To help you understand why, here's the definitions of both:
Simile: it's a <span>figure of speech involving the comparison of one thing with another thing of a different kind, it's used to make writing seem more vivid.
Metaphor: this is also a</span><span> figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
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So an analysis is like the structure or elements in a specific writing.
Well...One way showing an understanding of a texts universal or central idea contributes to this is by your personal opinions. Your understanding for something is like sharing your thoughts and feelings about what something means to you. With that being said, this makes your analysis stronger because it’s these elements that bring in details nobody else could because they’re yours. Your opinion on something is like the reasoning to a quote making an essay structure stronger!
Equiano’s story would have been useful for abolitionists as his journey on the slave trade ships was (and still is to this day) a devastating account of mistreatment and the horrors that many Africans faced. Because of this, it led many to side with the abolitionists. He was also admired for his courage and wits, which helped their image greatly.