The opening worship happened at several open-air stages in the city. I tried to get to the Opernplatz, but could not make it there due to the tide of good-natured humanity (50 000+ were there already). The initial opening worship/performance, involving graffiti on top of the Ten Commandments, emphasising the theme of a culture of questions was duplicated at the other stages, and I got close enough to the Steintor stage to see this and hear the sermon,.