One of the most important sources for Zen is the Chinese Taoist philosophy with its central image of “yin and yang which are Tao” (to speak of Zen means to speak of Tao). According to Zen, our universe (space) as well as time are one, utterly inseparable whole, and when we see them from another aspect, they are both an infinite collection of individual unique parts. Again, their two aspects cannot be separated. If there is not the first, no universe coherently connected can exist. If there is not the latter, no separate things and no individuality is possible.Like inside and outside of a cup, yin and yang are inseparable from one another. One cannot exist without the other.

The concept of Yin and Yang originates in ancient Chinese philosophy and metaphysics, which describes two primal opposing but complementary forces found in all things in the universe. Yin, the darker…