Saying this does not make it true thought. Is that actually what people do during meditation? The only experience I have with meditation is sitting in seiza position after 2 hours of Ki Aikido, slowly feeling my muscles cramp, listening to someone hit a drum periodically, and not feeling anything good at all.
Eventually I just learned to devote that time to reviewing things I had learned that day. I found this self-reflective practice far more refreshing and pleasant than any search for metaphorical emptiness.