The aesthetic is the personal, subjective realm of existence, where an individual lives and extracts pleasure from life only for their own sake. In this realm, one has the possibility of the highest as well as the lowest. The ethical, on the other hand, is the civic realm of existence, where one's value and identity are judged and at times superseded by the objective world. In simple terms, one can choose either to remain oblivious to all that goes on in the world, or to become involved. More specifically, the ethic realm starts with a conscious effort to choose one's life, with a choice to choose. Either way, however, an individual can go too far in these realms and lose sight of his or her true self. Only faith can rescue the individual from these two opposing realms. "Either/Or" concludes with a brief sermon hinting at the nature of the religious sphere of existence, which Kierkegaard spent most of his publishing career expounding upon. Ultimately, Kierkegaard's challenge is for the reader to "discover a second face hidden behind the one you see" in him/herself first, and then in others.