I have noticed that I have had a number of dream with spiral staircases or spiral patterns. One dream, long ago, showed me the universe shaped as a spiral. More recently, I these spiral staircase dreams. Any idea what this might mean? I have read about the 'Spiral Castle of Arianrod' in The White Goddess. It's a womb/tomb metaphor. The Pilgrim's Progress has a cover illustration that describes Christian's journey in the shape of a spiral.