“When practitioners of the Tao get to where the five elements are assembled and have been returned to the source, when everything acquired is obedient to their will, if they do not know how to prevent danger and take perils into consideration, eventually what has been gathered will again disperse, and they will not be able to avoid the trouble of losing what has been gained…When the primordial has been congealed, it is not subject to injury by acquired conditioning, but it is still necessary to dissolve the influence of personal history before nature and life can be stabilized. If there is any remaining contamination, eventually conditioning will reassert itself and the primordial will again become fragmented. Therefore the work of guarding is indispensable.” — T. Cleary, The Buddhist I Ching