The Portal of God is nonexistence. All things sprang from nonexistence. Existence could not make existence existence. It must have proceeded from nonexistence, and nonexistence and nothing are one. Herein is the abiding place of the sage.
ZhuangziThe raven hatches its young; the fish spew forth their eggs; the slim-waisted wasp transforms, and when a younger brother comes along the elder brother weeps. For too long I have not been able to work in harmony with these changes. So, given that I did not play my part in harmony with others, how could I expect to change people?
ZhuangziSorrow and happiness are the heresies of virtue; joy and anger lead astray from TAO; love and hate cause loss of virtue. The heart unconscious of sorrow and happiness - that is perfect virtue. One, without change - that is perfect repose. Without any obstruction - that is the perfection of the unconditioned. Holding no relations with the external world, - that is perfection of the negative state. Without blemish of any kind, - that is the perfection of purity.
ZhuangziTao is the source of both fullness and emptiness. But it is itself neither fullness nor emptiness.
Zhuangzi