Do we walk a straight line? I dont think so, even on the road , we have turnings to the left and right to reach our destination, having to move about to achieve so much. It' not simply following a script, it's not simply following a story line but it's living a reality. Humans lives with what completes and comforts them. What feels natural to them. You can have anything and everything but not having those elements.
Have you ever had moments where you just feel so complete? and every single thing you do feels so natural and heavenly...because if you don't go and look for it because you might be missing on a lot of wonderful things.. ;-)