All that is limited by form, semblance, sound, color is called object. Among them all, man alone is more than an object. Though, like objects, he has form and semblance, He is not limited to form. He is more. He can attain to formlessness. When he is beyond form and semblance, beyond "this" and "that," where is the comparison with another object? Where is the conflict? What can stand in his way? He will rest in his eternal place which is no-place. He will be hidden in his own unfathomable secret. His nature sinks to its root in the One. His vitality, his power hide in secret Tao.
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.
ZhuangziThere is danger for the eye in seeing too clearly, danger for the ear in hearing too sharply and danger to the heart from caring too greatly.
ZhuangziThe fact is that those who do not see themselves but who see others, who fail to grasp of themselves but who grasp others, take possession of what others have but fail to possess themselves. they are attracted to what others enjoy but fail to find enjoyment in themselves.
Zhuangzi