Why spirals?

---

"The world does not move through time as if it were a straight line, proceeding from the past to the future. Instead time moves through and within us, in endless spirals. Eternity does not mean infinite time, but simply timelessness."

 "Life is a journey up a spiral staircase; as we grow older we cover the ground we have covered before, only higher up; as we look down the winding stair below us we measure our progress by the number of places where we were but no longer are. The journey is both repetitious and progressive; we go both round and upward."

"The path isn't a straight line; it's a spiral. You continually come back to things you thought you understood and see deeper truths."