This involves techniques for self-observation. It's not meditation or contemplation, it's a different type of self-awareness. And this isn't mushin. This is the study of bringing what lies in the unconscious field into the conscious field. And I agree with Lynn about having a more mindful practice. This isn't about shutting anything off. It's about turning much more on.
I was introduced to the idea years ago through Gurdjieff/Ouspensky work.