The Mind in its dimensions is broad and great, like empty space. It has no sides or limits, it is neither square nor round, neither large nor small. It is neither blue, yellow, red, nor white; it has neither upper nor lower; it is neither long nor short. It knows neither anger nor pleasure, neither right nor wrong, neither good nor evil. It is without beginning and without end. But good friends, do not, hearing me speak of emptiness, become attached to emptiness.
– Shin’ichi Hisamatsu, from The Characteristics of Oriental Nothingness