Continuous practice is the circle of the way. This being so, continuous practice is unstained, not forced by you or others. The power of continuous practice confirms you as well as others. It means your practice affects the entire earth and the entire sky in the ten directions. Although not noticed by others or by yourself, it is so.
…I would suggest that the eyes are open in zazen for their influence in resetting the vestibular sense and providing a continuity in the sense of location, yet in zazen the proprioceptive sense must be allowed to influence the sense of location almost as though the eyes are closed. It’s a trick, a lot like falling asleep with your eyes open.
In the course of conversation, I put forward to a practitioner of medical Qigong that the experience of qi (chi) takes place in a state between waking and sleeping. He replied that he had once been in a lab hooked up to instruments while he practiced, and the folks watching the dials affirmed that he went through the first three stages of sleep with his eyes open. He agreed with me that this is the aspect of his practice that is difficult to teach, and said that his students get it through the practice of the art he teaches.