Whitehead, in his little book on symbolism, makes a great observation on the ever-changing meaning different symbols have through history.  I read this quote and started thinking ‘what Christian symbols need adaptation and which need a revolution?’

‘No account of symbolism is complete without this recognition that the symbolic elements in life have a tendency to run wild, like the vegetation in a tropical forest.  The life of humanity can easily be overwhelmed by its symbolic accessories.  A continuous process of pruning, and of adaptation to a future ever requiring new forms of expression, is a necessary function in every society.  The successful adaptation of old symbols to changes of social structure is the final mark of wisdom in sociological statesmanship.  Also an occasional revolution in symbolism is required.’  (p 60)