The Nazi put enormous effort into rituals and ceremonies. The annual Nuremberg Rallies are only the most prominent examples. The party provided a lot of material to party propagandists for organizing such events. Considerable material on this is available on the GPA.
Today I am adding five photographs showing “good” and “bad” examples of the stage decorations for such events.
This one, for example, shows a “well-decorated” meeting hall for Advent ceremonies. Note that there is no suggestion of a Christian element.