Sit in meditation, but do not think. Look only at your mind. You will see thoughts coming into it. Before they can enter, throw these away from your mind until your mind is capable of entire silence.
~ Bhaskar Lele
Look at this window: it is nothing but a hole in the wall, but because of it the whole room is full of light. So when the faculties are empty, the heart is full of light. Being full of light it becomes an influence by which others are secretly transformed.