What is universal about the fate of Oedipus in Sophocles's Oedipus Rex?

A
play is composed of three parts: plot, character, and theme. The theme of a play, particularly
of a Greek tragic play like 's , explores fundamental, universal ideas that
can apply to every member of the audience.

Even though a character in a
Greekmight be of a totally different social, economic, or political status than members of the
audience - most audience members are not Kings or Queens of Thebes - there is something about
the character, such as their personality, situation, or the choices the character makes, with
which each member of the audience can identify and which they can relate to themselves and their
own lives.

Three interrelated universal themes in Rex
are the regard for unwritten laws, regard for the truth, and regard for the limits of free
will.

At the time that Sophocles wrote Oedipus Rex ,
there was an unwritten law that was nevertheless known and understood by every member of the
audience that a person's destiny, their fate, was...