Heidegger and Lewis Continued

Continuing along the lines of the former post on Heidegger and Lewis, it strikes me that there may be some interesting questions to be gained by their combined insights. If myth/poetry/art really does express reality, then at some level we must recognize that myth/poetry/art is both a disclosure of preexisting truth/reality and a creation of new truth/reality. This becomes particularly apparent when these two thinkers are supplemented by the thought of Kenneth Burke, who observed that part and parcel with our nature as "symbol-using animals" is the fact that most of our social reality is constructed symbolically. Thus, as an extension of Lewis's concept of myth as reality, from Heidegger we realize that myth discloses reality, and from Burke we find that it also creates new realities. What are the ethical implications of this idea? When constructing narratives, especially narratives of identity, i.e. "American," "Evangelical," "Intellectual," etc., one must be careful to consider the implications of that narrative, i.e. the reality it creates (or at the very least promotes) in the world. Who is being alienated or oppressed by that narrative? Who is being "othered"? Who is the implicit enemy? What are the implicit goals? From a Heideggarian perspective, what elements of Being are brought forth in this narrative? Does it leave room for other elements to be brought forth, or does it close off other avenues in a dominating, impoverishing manner? The author, the poet, the novelist, the speechwriter... all must consider these things as they go about the work of formulating reality.