Those who read books cannot understand the teachings and, what’s more, may even go astray. But those who try to observe the things going on in the mind, and always take that which is true in their own minds as their standard; never get muddled.
Win over the ill-natured man by goodness…Make haste in doing good; check your mind from evil; for the mind of him who is slow in doing meritorious actions delights in evil.
Every portion of body, mind, and spirit yearns for integration of yin and yang… Where ordinary intercourse unites sex organs with sex organs, angelic cultivation unites spirit with spirit, mind with mind, and every cell of one body with every cell of the other body.
The mind is the instrument, the flywheel, and the thickest comrade of man. Through it, one can ruin oneself or save oneself. Regulated and controlled, channeled properly it can liberate; wayward and let loose, it can entangle and bind fast.

