‘So even [if] you practice hard, your zazen sometime will be good, sometime will not be so good. It is– actually it is not always in the same– we cannot practice our way in the same way always. The purpose of zazen is not to think about it. To catch ourselves in its full function is zazen. If so, there is no need to think about it. If you think about it, you cannot– you will lose it. When you don’t think and [are] involved in the practice fully, you have zazen.
Even it is so, we have to prepare everything one by one carefully. That is our everyday life. When you wash your face you should wash your face carefully. When you walk you should walk carefully. One by one you take care of your activity. But when you are taking care of your activity, you are involved in something which is– which cannot be grasped. You are not anymore you.’ (from the Suzuki Roshi Archives)
Another talk from an early sesshin at Tassajara, with Suzuki Roshi encouraging his students to go deeper than they probably ever had before.