At 3.2.378-95 [The dialogue begins with, “My fair lord, this must be done with haste”] of A Midsummer Night’s Dream, Puck and Oberon have a strange and (I think) beautiful exchange: Puck describes the moment at hand and Oberon responds with a description that obliquely extends Puck’s evocation of the morning, but also—and even more obliquely—seems to correct or adjust some implication of Puck's speech. Try to account for this unusual exchange, and use it as a springboard for a broader question: what is the place and significance of fairies in the play? What ideas, questions, or themes do these immortal creatures allow the play to explore? “Love” may be an obvious answer to this question, but don’t let your investigation stop there.

First, let's discuss the exchange between Puck and Oberon. Prior to this moment, the fairies have charmed the human characters, as well as Oberon's queen, Titania, and great chaos has resulted as people have fallen in love with people they would not normally love. As this midsummer night comes to a close, Puck and Oberon reflect on the impending morning. Oberon will reverse the charms so that when the four lovers return to Athens, all will be well and their friendships will last forever. Oberon also says that he will mend things with Titania, with whom he has had a conflict over an "Indian boy." Puck says they must do so quickly, as the sun is about to come up. He talks about the ghosts that have been on the loose and are now returning to their graves; as he discusses the "doomed spirits," the lines take on a dark and fearful tone. Oberon then corrects Puck's comments about the coming day by contrasting the fairies with these ghosts. The ghosts are threatening figures, but the fairies are playful. They "are spirits of another sort" who "have oft made sport" during the night as the sun is about to come up (388-389). The fairies are not in any way threatening but are merely motivated by mischief, rather than ill intent.
This reveals that the fairies' role in A Midsummer Night's Dream is to perhaps subvert the norms and codes of society. In Athens, in the day, the lovers and all other citizens are expected to behave in a particular way. The lovers even ran away to the forest because of the rules and expectations placed upon them by their parents. In the forest, on this midsummer's night, there is more freedom. The characters can release their stress and anxiety and embrace play. The fairies are a supernatural force that can inspire and encourage "play" as a departure from and subversion of cultural restrictions.