The mind must come to a state of silence, completely empty of fear, longing and all images. This cannot be brought about by suppression, but by observing every feeling and though without qualification, condemnation, judgement, or comparison. If unmotivated alertness is to operate the censor must disappear. There must simply be a quiet looking at what composes the mind. In discovering the facts just as they are, agitation is eliminated, the movement of thoughts becomes slow and we can watch each thought, its cause and content as it occurs. We become aware of every thought in its completeness and in this totality there can be no conflict. Then only alertness remains, only silence in which there is neither observer nor observed. So do not force your mind. Just watch its various movements as you would look at flying birds. In this uncluttered looking all your experiences surface and unfold. For unmotivated seeing not only generates tremendous energy but frees all tension, all the various layers of inhibitions. You see the whole of yourself.
Observing everything with full attention becomes a way of life, a return to your original and natural meditative being.
— Jean Klein – The Ease of Being (p. 28)