His point of view goes from observant to reflective, to mournful.
The narrator maintains his composure throughout the story.
Jealousy runs the characters' lives in Othello from the beginning of the play, when Roderigo is envi- ous of Othello because he wishes to be with Desdemona, and to the end of the play, when Othello is furious with envy because he believes Cassio and Desdemona have been engaging in an affair.
The purpose of the introduction is to present the main idea