Breath has a great effect on the our internal energy. When we gain an understanding of the relationship of breath to these energies, we are able to control them and benefit from them both mentally and physically.
In any sort of meditation, the key is focusing on your breathing, forget who you think you are, and become one with the eternal moment.
by Shunryu Suzuki
When we inhale, the air comes into the inner world. When we exhale, the air goes out to the outer world. The inner world is limitless, and the outer world is also limitless. We say “inner world” or “outer world,” but actually there is just one whole world. In this limitless world, our throat is like a swinging door. The air comes in and goes out like a swinging door. The air comes in and goes out like someone passing through a swinging door. If you think, “I breathe,” the “I” is extra. There is no you to say “I.” What we call “I” is just a swinging door which moves when we inhale and when we exhale. It just moves; that is all. When your mind is pure and calm enough to follow this movement, there is nothing: no “I,” no world, no mind nor body; just a swinging door….
Tozan, a famous Zen master, said, “The blue mountain is the father of the white cloud. The white cloud is the son of the blue mountain. All day long they depend on each other, without being dependent on each other. The white cloud is always the white cloud. The blue mountain is always the blue mountain.” This is a pure, clear interpretation of life. There may be many things like the white cloud and blue mountain: man and woman, teacher and disciple. They depend on each other. But the white cloud should not be bothered by the blue mountain. The blue mountain should not be bothered by the white cloud. They are quite independent, but yet dependent. This is how we live….
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 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. If you have this kind of experience, this kind of existence, you have absolute independence; you will not be bothered by anything.