If meditation were to stop with ruminating intently over one's own best ideas or over some inspired man's recorded ideas, the result would certainly be helpful and the time spent worthwhile. It would be helpful and constructive, but it would not be more than that. Such communion with thoughts is not the real aim of meditation. That aim is to open a door to the Overself. To achieve this, it casts out all ideas and throws away all thoughts. Where thinking still keeps us within the little ego, the deliberate silence of thinking lifts us out of the ego altogether.
-- Notebooks Category 4: Elementary Meditation > Chapter 3: Fundamentals > # 15