Half an hour of slow, warming movement, and then a long time on the floor.
Yin works connective tissue and fascia rather than muscle, which is why the postures are held for minutes rather than breaths. Nothing is dynamic and nothing is forced. You find an edge, you settle underneath it, and then you stay there long enough for something to change — which is uncomfortable in a way that turns out to be extremely useful.
There is not much talking. That’s on purpose.