For G.W.F. Hegel, Vorstellung (often translated as "representation" or "picture-thinking") is a mode of consciousness that understands abstract truths through images, symbols, and narratives rather than pure, rigorous concepts. It is an intermediate cognitive stage between immediate sense perception and pure philosophical comprehension.
In Insight, page 448, Lonergan writes that he breaks "completely from mere extroverted consciousness, not because it is illusory, but because it is confusing and philosophically irrelevant. AT the same time, a mmmore thorough and precise account of human knowing enables us to eliminiate the rigidity of the Kantian apriori .... to define metaphysics by the integral heuristic structure of this drive, and so to conceive philosophy as universal knowledge without infringing upon the autonomy either of empirical science or of commmon sense."
He then writes on "Scientifc Method and Philosophy".....
I write the above to provide a context for the notion of Vorstellung (idea, notion,concept) which Pierre and someone else brought up, John