To put it differently, as long as mind and heart are caught up in want, in desire, there must be emptiness. You want things, ideas, persons, only when you are conscious of your own emptiness, and that wanting creates a choice. When there is craving there must be choice, and choice precipitates you into the conflict of experiences. You have the capacity to choose, and thereby you limit yourself by your choice. Only when mind is free from choice is there liberation.