It looks very difficult to sit without any gaining idea. But actually, as you sit today, at least you should be completely involved in the atmosphere or feeling of the zendo, and just practice our way. You should not bring many ideas into the zendo. When you enter the zendo, you should be a quite different person, forgetting all about what you have been doing, and you should just sit.
—cuke.com/ig for links to the source of the photo. Excerpt from Shunryu Suzuki lecture 68-10-12-A as found on shunryusuzuki.com, edited by PF. Go to instagram.com/cuke_archives for the Instagram version.