Victor Turner wrote extensively about the way in which pilgrimage meant stepping out of regular structures producing a sense of communitas between pilgrims. Communitas is a kind of egalitarian community that occurs when the normal ways of relating including authority structures etc are suspended.
We experienced a little communitas this morning at Ascension when we arrived to discovered the batteries in the thermostat were dead and the furnace in the church hadn't been on for some time. It was icy cold so we moved the service into the hall. The whole feeling of the service changed with people sitting around the tables in a rather oddly shaped circle. People spoke back in the service and everyone seemed in great spirits as we moved books and brought in candles and improvised an altar. What fun!