General: Our defensive attitudes; feelings of security; social barriers; boundaries created by anxiety or view of life – a nationalistic attitude might act as a barrier to seeing other viewpoints on history. Our dependence upon our physical senses gives a boundary to our awareness, and a wall may also express such a frontier of our awareness. Walls of a favourite house: Might be our feelings of security in our marriage or family which give us defence against the ‘storms’ of life. Wall of prison or trap: Fear; pain; ignorance; prejudice; anger; sense of being an outsider; family attitudes or responsibilities one feels restrained or trapped by. Idioms: Drive somebody up the wall; go to the wall; writing on the wall; back to the wall; head against a brick wall; fly on the wall. See: wall under house; fence.