Zen master Mumon

Ordinary Mind is Tao

Mumon’s Poem: Hundreds of flowers in spring, the moon in autumn, The cool breeze in summer and snow in winter; If there is no vain cloud in your mind, for you it is a good season.

Mu, by Maezumi Roshi

It’s not a matter of intellectually figuring out what mu is. To see muji you must put yourself completely into it until you are mu itself. Concentrate on muji until you and muji become one thing, and then keep on working.