Zen Teaching of Mu

Interesting article about Zen in general and Mu in particular:

'The experience of mu may at first glance seem purely negative or passive,' he says, 'but it is not so at all. Being mu, or empty of self, allows one to actively take in whatever comes. Our world today and all in it are separated into dualistic distinctions of good and evil, birth and death, gain and loss, self and other, and so on. By being mu, not only does one's self-centeredness disappear, the conflicts that arise with others dissolve as well.