I've seen that spontaneity is a common theme for Zhuangzi. Like the guy that goes in the whirlpool/rapids and rides out to the other side.  Been trying to put this into practice and I think it's a powerful concept. Spontaneity, however, is somewhat hard to define.  It's not as if, in being spontaneous, one acts irrationally or impulsively. It's also not as if one gives up on any sort of planning or goal setting for the future.  To me its more like acting and responding in the moment without attachments, though struggling to put it into words. Perhaps that is why Zhuangzi used anecdotes.   Interested in others thoughts: how does one living in the modern world be spontaneous? (anecdotes welcomed 🙂)