In [Zazen], endless delusions will appear and disappear. Dreams and shadows will arise, let them come and go. Even these thoughts are the very stuff the original ground is made of. In the mountain state, how could the big sky obstruct clouds roaming and drifting? How could a cloud hide the vast blue body? Blue sky or clouds, same origin. Just be awake to the scenery of the body- mind and as you drift away, just come back, here and now. And come back again. You may put your mind in the palm of your left hand, be aware of the vertical spine, being awake to sounds without following them; ultimately there is nothing to do and nobody to do anything. Let not knowing manifest.
This sitting is without object or intention. Just the clear, non judgmental, panoramic attention to what arises here and now. Don't be attached to your thoughts of understanding or not understanding, of being right or wrong, break free from the realm of desires and intentions , be still, be the full body of reflection without judging self or others. To sit like this is to live and thoroughly experience the great question, to fully pierce it and penetrate it.