Here is what my professor explained and wants us to write our essay base on this.If you had any question about it please let me know.
The purpose of a literary analysis essay is to carefully examine and sometimes evaluate a work of literature or an aspect of a work of literature. As with any analysis, this requires you to break the subject down into its component parts. Examining the different elements of a piece of literature is not an end in itself but rather a process to help you better appreciate and understand the work of literature as a whole.