What does Shakespeare try to reflect in his work "Othello"?

One cannot know with certainty what Shakespeare had for
the purpose when he wrote the play "Othello," but a guess can certainly be extrapolated.
Since it is a tragedy, and he had written others, the simple definition or formula of
the tragedy is probably not the most important element in the play. One of the
interesting things about the play is that Othello's confidant is actually his undo-er.
And, the fact that Othello had completely put Iago in his confidence, it says a great
deal about how one should really know their trusted friends. This i snot one of the
elements that is common to many plays. There may be friends who are jealous of another,
but in this case, Othello's trust is completely misplaced and results in the death of so
many people, that most of the people in the play end up killed, maimed, or
injured.