In its strict sense, koan Zen or shikantaza is for very advanced students, not for us. Before we can practice koan Zen or shikantaza, we should be able to practice counting breathing practice or following breathing practice which is very close to shikantaza. Just follow our breathing. And then, maybe we can say our practice is shikantaza.
—cuke.com/ig for links to the source of the image. Excerpt from Shunryu Suzuki lecture 69-05-18 as found on shunryusuzuki.com, edited by PF. Go to instagram.com/cuke_archives for the Instagram version.