We do not exist for the sake of something else. We exist for the sake of ourselves. This is the fundamental teaching expressed in the forms we observe. Just as for sitting, when we stand in the zendo we have some rules. But the purpose of these rules is not to make everyone the same, but to allow each to express his own self most freely.
… The most important point is to own your own physical body. If you slump, you will lose your self. Your mind will be wandering about somewhere else; you will not be in your body. This is not the way. We must exist right here, right now! This is the key point.
… usually, without being aware of it, we try to change something other than ourselves, we try to order things outside us. But it is impossible to organize things if you yourself are not in order.
Written teaching is a kind of food for your brain. Of course it is necessary to take some food for your brain, but it is more important to be yourself by practicing the right way of life.
When we become truly ourselves, we just become a swinging door, and we are purely independent of, and at the same time, dependent upon everything. Without air, we cannot breathe. Each one of us is in the midst of myriads of worlds. We are in the center of the world always, moment after moment. So we are completely dependent and independent.
The same way works for you yourself as well. If you want to obtain perfect calmness in your zazen, you should not be bothered by the various images you find in your mind. Let them come, and let them go. Then they will be under control. But this policy is not so easy. It sounds easy, but it requires some special effort. How to make this kind of effort is the secret of practice.