Proper Scriptural Interpretation

For one of my classes we have been spending some time looking at the Psalms. They are a unique portion of scripture. I think that we are often taken by surprise when we read through these very honest discussions of the relationship between God and man. Particularly, I am interested in the idea of Richard Mays that we are interpreted by the Psalms.
Often in the restoration movement, we have turned the microscope on the proper meaning of the text. We want to know what the author meant and how he meant it in his society. When dealing with Psalms the task is difficult because we know little about the actual history of the writing of the Psalms. Even the superscriptions seem to be artificial.
Brugemann suggests that as a result we give the Psalms new superscriptions that apply to the lives of the current church. We reapply the text to modern readers for pastoral purposes. I cannot say I disagree with him. However, if his idea is that we reinterpret the Psalms in the face of modern circumstance, I would suggest a nuanced change. Instead, we reinterpret ourselves in light of the Psalms. The Psalms explicate us, not the reverse.
Some would say that allowing something ambiguous to describe something concrete is silly. I agree. However I think often we are the ones lacking concreteness. How often have you felt (and more often your wife felt) that an emotion is incapable of fitting into words? Often in life we end up feeling like an exploding soda can because we can not put on the tongue what is in the heart. We have an emotion, a response, but that emotion is not concrete. We cannot put it into words. The Psalms interpret those emotions and give them a "limit expression."
These texts give us someone else's words, and those words come into our confusion and create something concrete that we too can say. We cannot interpret our own hearts, but the Psalms can. They peer into us, as the active, living word of God, and as a result give shape to our shapeless thoughts. When we give the Psalms new superscriptions we actual are redefining ourselves. What we are experiencing is at the limit of our understanding, so we need the limit expressions of the Psalms to bring clarity to our hearts.