Inwardness and true quietness appear to be but two aspects of the same thing -- of a "truly centered" life. In the innermost religion of life there is a perpetual calm; perturbations and excitements belong to the comparatively superficial part of our own nature. In cleaving to the Center we cannot but be still; to be inwardly still is to be aware of the Center.
This is the secret. You must step back, separate yourself from your everyday thoughts and habitual gestures: look at them. It is patient work, like the work of the watchmaker who observes the spirals and gears under the lens, cleans and calibrates. The secret is to retreat deep into oneself until one encounters an almost imperceptible vibration, which then becomes more and more evident, a silent, separate, calm vibration. Those who anchor themselves in this possess serenity all day long.