Mental activity in the pink matter (wet) comes up with an idea that drives the hand that picks up the pencil & paper (dry) and writes the idea down. From there it gets uploaded across the firewall into (air) cyberspace.

Daniel Kahneman refers to Fast and Slow thinking as System One and System Two, respectively. System One defines the effortless, intuitive part of our thinking while System Two explains the kind of concentration that involves effort.

The time & energy required to train your mind to STOP thinking is even greater. That higher level of control over your thoughts is achieved through the practice of meditation.