Basically your writing a book report. This essay is to talk about about the book – The rime of the ancient Mariner. It is not to give an opinion. It is to basically tell the story of the book. Site has the entire story for you to read.
https://www.poetryfoundation.org/poems/43997/the-rime-of-the-ancient-mariner-text-of-1834
Testimonials
The Rime of the Ancient Mariner