The Tao gives birth to One. One gives birth to yin and yang. Yin and yang give birth to all things... The complete whole is the complete whole. So also is any part the complete whole... But forget about understanding and harmonizing and making all things one. The universe is already a harmonious oneness; just realize it.
The ten thousand things flourish and then each returns to the root from which it came. Returning to the root is stillness. Through stillness each fulfils its destiny.
Can you dissolve your ego? Can you abandon the idea of self and other? Can you relinquish the notions of male and female, short and long, life and death? Can you let go of all these dualities and embrace the Tao without skepticism or panic? If so, you can reach the heart of the Integral Oneness.
The fourth (of the four cardinal virtues) is supportiveness: this manifests as service to others without expectation of reward. (Paraphrased: Such service is not a mere conforming to some external rule of behavior, but instead a manifestation of your original nature).
Who is unhappy with little, won't be with much; who doesn't appreciate the small won't be able to take care of the large; who doesn't have enough with enough is at the margin or virtue, for the physical body lives from one day to another and if it gets what it really needs, there will be time for meditation, as long as if we try to give it everything it desires, endless will be the task.