The belief that meditation is only an exercise in quiet reflection is a half-true, half-false one. It may begin like that, but it must not end like that. For when it is sufficiently advanced, thoughts should be dropped and the mind emptied. This will not be possible in a few days or months, but if one sits for it daily, regularly, this utterly relaxed state will suddenly be realized.
-- Notebooks Category 4: Elementary Meditation > Chapter 7: Mindfulness, Mental Quiet > # 27