It is only when the mind is empty that there is a possibility of creation; but I do not mean this superficial emptiness which most of us have. Most of us are superficially empty, and it shows itself through the desire for distraction. We want to be amused, so we turn to books, to the radio, we run to lectures, to authorities; the mind is everlastingly filling itself. I am not talking of that emptiness which is thoughtlessness. On the contrary, I am talking of the emptiness which comes through extraordinary thoughtfulness, when the mind sees its own power of creating illusion and goes beyond.
The First and Last Freedom
Chapter 21 'Power and Realization'