I visited the frescoes of Lascaux and Tassili. Thousands of years ago, people left their pictures on the rocks in these caves. These are powerful works of art nourished by cosmic consciousness. Which painter could create the equivalent today? I cannot express a general opinion on the form in which human development has taken place, nor can I decide which would be the best. Intelligence has developed strongly since the Renaissance and cultures have become intellectualized. But what happened to wisdom? I can assure you the following: By practicing zazen, our brain can regain its normal and original state and return to the cosmic order. New energy penetrates into people, a strong activity develops, pure creative power reveals itself in them, and the ability to concentrate intuitively becomes a matter of course.
One must not want the satori and not search for it. Anyone who asks such a question will certainly want to preserve satori. Dogen in particular emphasizes that satori already exists in us, in fact even before our birth. So if we already have satori, why try to get it?
But when our life is full of passions and desires, when it is complicated, we must practice zazen to return to the normal. Zazen itself is satori. The return to the normal state is achieved through good posture, correct breathing and silence. Asking the question whether I have satori means that one has not understood what true Zen is. The right answer can only be: "No, I don't have satori, but I practice zazen, because zazen itself is already satori."
These are translated extracts from: Taisen Deshimaru-Roshi: ZA-ZEN Die Praxis des Zen, Kristkeitz Verlag, 1978, p.51ff