On Dogen's 'Universal Emptiness'
Koku is one of the shorter fascicles of Dogen’s Shobogenzo . Notwithstanding its brevity, it is still as dense and difficult to comprehend as many of his other works. One can glimpse the nature of this difficulty by contemplating for a moment the various English translations of the one word title alone: Space (Nishijima, 2009), On the Unbounded (Nearman, 2007), and, of course, Universal Emptiness (Nishiyama, 1975). Each of these reveals a slightly different way of thinking about the Buddhist concept of shunyata (Sanskrit) or ku (Japanese). According to Okumura (2012) koku actually has three different possible meanings. In our very ordinary way of looking at things it can refer to the empty space that is between objects or which is bounded in some way. It can also refer to space which does not lose its nature on account of being occupied. Yet another meaning, however, points to the most profound of Buddhist teachings, i.e. the emptiness of all phenomena. As Okumura says: