Does the speaker symbolize something or someone else in midnight summer's dream?

Theseus and Hippolyta bookend A Midsummer Night’s Dream, appearing in the daylight at both the beginning and the end of the play’s main action. They disappear, however, for the duration of the action, leaving in the middle of Act I, scene i and not reappearing until Act IV, as the sun is coming up to end the magical night in the forest. Shakespeare uses Theseus and Hippolyta, the ruler of Athens and his warrior bride, to represent order and stability, to contrast with the uncertainty, instability, and darkness of most of the play. Whereas an important element of the dream realm is that one is not in control of one’s environment, Theseus and Hippolyta are always entirely in control of theirs. Their reappearance in the daylight of Act IV to hear Theseus’s hounds signifies the end of the dream state of the previous night and a return to rationality.

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to save the day, harry must get past a scary three-headed guard dog.