Sharing yet another quote that I like:
"Hishiryo is cosmic consciousness and not personal consciousness. We can directly experience this during zazen. We usually thinking of our family, friends, anxieties, jobs, holidays, all the phenomena that arise from our memories and daily life. But during zazen, we concentrate on posture and breathing, our thinking calms and cools, we harmonize with the cosmic current and abandon our ego selves, permitting the subconscious to rise to the surface. Our thoughts expand and deepen, attaining universal consciousness. Through zazen we can go to the bottom of this ultimate consciousness. This is the essential art of zazen."

~ Kodo Sawaki Roshi (1880-1965)

Comments?