How does one turn something intangible into concrete and meaningful art without undermining the significance of the subject?

I approached this visit as one of artistic inquiry, specifically pertaining to Berlin’s approach to memorializing a vast, overwhelming epoch. How does one turn something intangible into concrete and meaningful art without undermining the significance of the subject? I took away an unforgettable lesson in German humanity: culture, hospitality, struggle and triumph. I also know myself better as a Jew.