By "not craving (ch'iu) anything" is meant this: Men of the world, in eternal confusion, are attached everywhere to one thing or another, which is called craving.
The wise however understand the truth and are not like the ignorant. Their minds abide serenely in the uncreated while the body moves about in accordance with the laws of causation. All things are empty and there is nothing desirable to seek after. Where there is the merit of brightness there surely lurks the demerit of darkness.
This triple world where we stay altogether too long is like a house on fire; all that has a body suffers, and nobody really knows what peace is. Because the wise are thoroughly acquainted with this truth, they are never attached to things that change; their thoughts are quieted, they never crave anything.
Says the Sutra: "Wherever there is a craving, there is pain; cease from craving and you are blessed." Thus we know that not to crave anything is indeed the way to the Truth. Therefore, it is taught not "to crave anything".
~ D.T. Suzuki, Manual of Zen Buddhism