"A diver jumping off the cliff, a mountain climber, an artist, a poet, or a musician creates a beautiful form that manifests the maturity of his or her life. But spiritual life doesn't have that same sense of performance. So creativity in religion cannot manifest in the same way. Of course you do manifest maturity because, as Dogen says, 'you cannot avoid detachment from the zazen posture'. But then, next you must be free from that manifestation. In Japanese we say gedatsu, meaning emancipation, or freedom. Moment after moment you must be free from the beautiful form you created, because the moment in which the form existed has already gone, and the next moment is coming up. Life becomes mature, constantly. You cannot stop it, not even for a moment, so you have to keep going. You must keep practicing to create this beauty again and again. This is spiritual creativity.
So, what is this zazen practice that we do? It's not doing zazen. If you believe it's doing zazen, then practice is just a task, and that task becomes a really big burden for you. That is not a true understanding of practice. Buddhist practice is to constantly create beauty. Beauty is the functioning of wisdom. That's why Dogen Zenji says that you have to abandon the usual understanding of the form of zazen and touch the heart of zazen. Otherwise you cannot maintain this kind of practice. That's why I have to explain it and why you have to understand very deeply what practice means. Then, if you understand even slightly, you should keep going. That makes your life mature" - Katagiri Roshi, Each Moment is the Universe.