Without any intentional, fancy way of adjusting yourself, to express yourself as you are is the most important thing. - Shunryu Suzuki

You do not say, “This is enlightenment,” or “That is not right practice.” Even in wrong practice, when you realize it and continue, there is right practice.

Zen is not some fancy, special art of living. Our teaching is just to live, always in reality, in its exact sense. To make our effort, moment after moment, is our way. In an exact sense, the only thing we actually can study in our life is that on which we are working in each moment. We cannot even study Buddha’s words.”
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“So we should be concentrated with our full mind and body on what we do; and we should be faithful, subjectively and objectively, to ourselves, and especially to our feelings. Even when you do not feel so well, it is better to express how you feel without any particular attachment or intention. So you may say, “Oh, I am sorry, I do not feel well.

Concentration is not to try hard to watch something... Concentration means freedom... In zazen practice we say your mind should be concentrated on your breathing, but the way to keep your mind on your breathing is to forget all about yourself and just to sit and feel your breathing.