The uniqueness of zazen lies in this: that the mind is freed from bondage to all thought forms, visions, objects, and imaginings, however sacred or elevating, and brought to a state of absolute emptiness, from which alone it may one day perceive its own true nature, or the nature of the universe.
Philip KapleauMindfulness is a state wherein one is totally aware in any situation and so always able to respond appropriately. Yet one is aware of being aware. Mindlessness, on the other hand, or "no-mindness" as it has been called, is a condition of such complete absorption that there is not vestige of self-awareness.
Philip KapleauMany have come to realization simply by listening to the tinkling of a bell or some other sound
Philip KapleauThe uniqueness of zazen lies in this: that the mind is freed from bondage to all thought forms, visions, objects, and imaginings, however sacred or elevating, and brought to a state of absolute emptiness, from which alone it may one day perceive its own true nature, or the nature of the universe.
Philip Kapleau