All things follow the law of arising and falling. One must attune himself to this rhythm. What is non-spoke makes the wheel go. Emptiness is real and is useful. Excessive sights, sounds, and flavors ruin the senses.
Excessive activities ruin one's mind.
Excessive accumulation ruins one's activity. He rejects the superficial for the profound. Regarding the world as one's body. Compare to Wang Yang-Ming. Attachment to the body versus attachment to the whole universe.