One of my pupils observed to me the other day that there is more material in my plays than in my speculative writings that could be used for the working out of a doctrine of truth. And when I had thought it over carefully, I thought his remark basically sound. But if this is so, is it mere chance that it is so? Obviously not. The fact is simply the indirect confirmation of the more general fact that when we set out to speak about truth, as when we set out to speak about God, we are in danger of speaking about something which is not truth, but is merely its simulacrum.... We must ask ourselves, then, whether truth is something which can only be alluded to, in a glancing way. The role of the drama, at a certain level, seems to be to place us at a point of vantage at which truth is made concrete to us, far above any level of abstract definitions.
Gabriel Marcel, The Mystery of Being, Part I, Chapter IV.