Consulting The Yijing - #53 > #4
Foundational Understanding
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Since in this way man comes to resemble Heaven and Earth, he is not in conflict with them. His wisdom embraces all things and his Tao brings order into the whole world; therefore he does not err. He is active everywhere but does not let himself be carried away. He rejoices in Heaven and has knowledge of fate, therefore he is free of care. He is content with his circumstances and genuine in his kindness, therefore he can practice love.
-- Confucius.
Since the Book of Changes presents a complete image of Heaven and Earth, a microcosm of all possible relationships, it enables us to calculate the movements in every situation to which these reproductions appear. If we ask how the Book of Changes can be a reproduction of the cosmos, the answer is that it is the work of men with cosmic intelligence; men who have incorporated their wisdom in the symbols of this book. Hence it contains the standard of Heaven and Earth.
Here we are shown how with the help of the fundamental principles of the Book of Changes it is possible to arrive at a complete realization of man's innate capacities. This unfolding rests on the fact that man has innate capacities that resemble Heaven and Earth, that he is a microcosm. Now, since the laws of Heaven and Earth of reproduced in the Book of Changes, man is provided with the means of shaping his own nature, so that his inborn potentialities for good can be completely realized.
-- Richard Wilhelm